The whataboutism is relevant because it’s clear that Marvel’s writers will treat many characters with kids gloves who have committed acts more horrible than Wanda’s, but any attempt to have Wanda atone gets shot down immediately. She’s trying to repower all the mutants she depowered? Intervention at the last second prevents it from happening. She’s willing to surrender to the x-men for whatever they think is a just response? Emma frost decides to mind control her kids for kicks. She tries to bring back the sixteen million mutants at Genosha, which she wasn’t even involved with and killed way more mutants than she ever could? Instead it makes a zombie apocalypse. Wanda has never atoned because the writer’s don’t want her to atone, they want to kill decimation over and over again while the X-men themselves ally with villains who either threatened to or actually have killed more people than Wanda ever did.
And this idea that Wanda essentially has to enslave herself to the eternal betterment of mutantkind when the Krakoan government has in the past been actively responsible, complicit, or had a hand in things just as bad or worse make it sound like no, you don’t actually care about Wanda as a character, you have an axe to grind over an editorial mandate and you want it taken out on the character by having her become a some kind of mutant Christ like figure helping them out all the time even while having abuse heaped on her.
And no, nobody is living in some fantasy land where the mutants are suddenly going to forgive her. The “fantasy land” I’ve described is that we move on from Decimation and stop treating Wanda like the only story ever involving her was one where she was a plot device instead of a character for a Joe Quesada mandate. And actually, yes, that fantasy land redemption you are talking about? Happens all the time. Hal Jordan killed the entire green lantern until it was revealed to be a space bug of fear. Wally West accidentally killed a bunch of fellow heroes until it was revealed to be Savitar. Magneto tried to exterminate the entire population of New York Humans including by throwing them into ovens, until it was revealed it was someone else on disguise. Hell, we did already have a retcon about how Decimation was due to the manipulations of Dr Doom, but everyone ditched that apparently.