This ins't about mutant they know are dead, all those deaths mentioned are a distraction from the real issue. The Five, until X-Factor was formed, had no official body to investigate or confirm anything, and there are millions of mutants to look after. Mutants may be immortal, but that's not the same as being invincible, if they die without anyone noticing and this will happen on a large scale since millions of mutants are on Krakoa the system Krkaoa has in place won't do anything about it unless it's right in front of them. This also presents a big issue with cloning missing people who are assumed dead but show up later on, because people vanish without explanation and show up later on or get new identities or whatever in real life. And the only means of preventing this would be that they're at the back of queue, not because the Five know anything significant about their stats among the living. This is about the future, not the past. This is a huge glaring issue with Xavier and the Quiet Council, despite Moira X convincing them of the "long game" they're incredibly myopic about how their government runs on pressing issues over their own citizens. Not every mutant is Wolverine, the X-men will care when he goes missing. Now we have, what is it, five mutants from X-Factor keeps tabs on how many millions of mutants? Those five mutants hold the lives of the obscure mutant in their hands, and not queue is going to save them if they don't do their paperwork properly. Mutants dying very few days, like Quintin, taking up slots because they can't stop themselves from dying from a paper cut just hampers this further. The old Xavier was never this sloppy, maybe this new one needs to replaced by someone like sage - she knows how to keep track of things right.
If a mutant dies and is not confirmed they may as well be dead for real because the Five won't know about it. It's only going to become longer with poor management of who's dying when and where. Or perhaps that's what xavier wants, make sure certain mutants (like the Genosha leaders who have quarrels with Magneto) going to the back of the queue so they won't mess with the status quo. It's real simple to game that system so 200 years becomes forever and who's going to notice?Krakoa already has a resurrection queue that will take 200 years to go through (at their current rate) without ever needing to investigate the missing mutants
Everything I said was canon with her characterisation. The fact my example of Cyclops being written exactly like she was was ignored shows there is no counter argument. Bad writing is bad writing, it doesn't become good when it occurs to a character who is disliked. Especially when she's disliked about something which is bad writing in itself, and even that has had sympathetic parts to it.Thats more of an excuse. How she handled this was canon and her plan was poorly thought out.