True but the boundaries and consistency of the rules of a fantasy environment are key to making it believable. Since you and I know all of Cass' stories very well, we see a consistency (at least up to OYL) and believe in the world she lives in. The feats she preforms make sense based on her pre-OYL corpus.
But other comics fans, maybe some who aren't as familiar with old Cass or not fans of hers, might not see her feats as consistent or sensible.
Even in the comic world setting. And that's the key: fiction, especially in highly fantastical worlds, is exceedingly subjective. Put another way, different strokes for different folks. Cass may not fit in some reader's comic realities for whatever reason. And it's not an objective argument, i.e. there's no finally getting someone to believe the "right" way about what makes sense in comics.
3 reality examples:
1) Cass outrunning a bullet. There's a Batgirl where Cass comes out a safe room vault and confronts a large group of criminals (like 20) who were about to enter. A guy about 10-12 feet from Cass fires a handgun at her head and in the next frame she's closed the 10-12 distance and is about to hit him. The trick is: the 2nd frame shows the bullet at about the spot where Cass started. Thus, she moved about bullet speed which is
not possible for a non-meta, non-alien, non-robot, non-magic, non-miracle-drugged person.
I repeat: not possible. But Cass fans may shrug their shoulders and say "meh, she did it cause she's awesome!" But some Cass fans (like me!), people who don't read Cass, and active Cass dislikers say "this is another example of PIS, wrongly pumping a character to meta levels when they're claiming she's just human."
2) Dick one shotting Midnighter. While holding a baby. I don't follow Grayson but from what I know about both toons, this is nuts. I also recall Batman knocking out the Flash from years ago. So these things don't make sense to me but they're not really big deals since I'm not that invested in those toons or those particular stories.
3) The new Batgirl art team is way too cartoony for me. I read a page and I can barely take in the dialog because the art communicates a tone and a feeling that completely contradicts the kind of comics I'm used to. So I don't read Batgirl which is too bad since I'm a Babs fan. But that's me. I know the current Batgirl title has loads of fans since it's sales are decent (a lot better than Catwoman! my fave).
So comics' reality in fungable and a function of the reader. If the fantasy world is *too* outlandish and inconsistent, then almost no readers will feel comfortable with the stories set in it. But boundaries, even though it's the comics, are required for most readers to like the setting.
Well, every fan (which is short for "fanatic") is going to be biased. You and I are "obviously biased" for Cassandra Cain. I think bias in western cultures has become a euphemism for an incorrect or irrational opinion based on unreasonable feelings. What rubbish! We are biased on almost everything we think about. And especially about fiction.
So I think it's not reasonable to argue fan of toon X is "totally wrong" when they complain about getting stomped by toon Y. It's their opinion and may not jive with mine but "totally wrong" should really be reserved for 1+1=3, pure mathematics with no units (i.e. no lbs, meters, euros, etc).
Ok, first off, are we talking old pre52 or New52? Because while the new characters are of course familiar because of their old versions, they are *new* and different. In particular, new Azrael is very different from the old, unlike new Cass who is pretty similar in her abilities (though slightly detuned fighting) and background.
I was surprised and very disappointed that Tim had such an easy fight with new Az. Old Tim was above Steph in fighting IMO but he wasn't great. New Tim seems to be a great fighter! And he seems irritable, angry, and unlikable. My only exposure to new Tim is BRE so maybe he's written differently elsewhere.
But new Az, oh it's so sad. I'd hoped a really hard fight requiring both Tim and Jason would occur without Az even being clearly defeated. Not so, not so. Old Az was a really good fighter with his mask on while here he's mostly flash, i.e. he looks cool. Also, the new Az story is very different: there's no discovery left for him, no unlocking how or why he's Az. That was his whole quest in the old days. Now, he knows what he is, wants to be it, and just got his butt handed to him by the world's second greatest detective. Bah!
So, to your point, I don't know why anyone would complain about *new* Az being too powerful or able to do this or that. New Az was soundly defeated by a Batman protégé. Seeing Az immobilized by Tim and his shouting "I am Azrael!..." was so depressing.
For new Cass, that's a different argument since new Cass actually has been shown to be extremely capable. And not just fighting since she somehow did something(s) to get the ARGUS jet to overfly Mother's nursery. But new Cass fighting ability and their fit in the New52 Batfam has been a discussion beaten to death. Though I'll go there again if anyone wants to!
This is a great idea! Except...
1) I think new Az may be just appearing in BRE to only be set aside for very rare later appearances. I just don't see his path forward, I don't know what his motivation or story arch would be. With new Cass, there's the never ending search for redemption because of her past killings. Plus, drama with Harper, a relationship of some kind with Stephanie, overcoming or learning to live with her speaking/reading/writing disabilities, etc. But with Az, I don't see his future story use at this point.
2) New Cass is being really tightly bound to the Batfam. Batman trusted her and no one else with the USB stick mission. She's been with Dick and Steph most of BRE. If DC uses Cass on a regular basis, I'm sure they'll at least initially use her in Gotham books so she can grow with other Batfam members.
But I really liked Cass in Justice League Elite. I think the whole JLE team except for Cass and Ollie were meta in some way. So having old Cass' mega speed and fighting ability on full display worked fine. Like you said, with players like Coldcast, Hawkgirl, etc you can have a Cass level human with super level feats work nicely.
So after new Cass is established outside of BRE, maybe 2 years, I'd love to see her be a regular in a mostly meta/alien team.