Unpopular opinion: Those who expected anything else are probably not familiar with Reddit. Nobody quit and nothing changed when Victoria got fired, nobody will quit and nothing will change now. It won't be the first time a modteam will be installed in a popular sub. People just want to scroll.
It sucks that she had to be fired rather than moved to a different role, but getting rid of her role as a QA proxy led to a HUGE improvement of AMAs. During her tenure there, they were nothing but an incredibly low effort part of normal celeb PR campaigns for new movies and similar things. And she/reddit were not very transparent about the fact that the "celebrity" responses were her paraphrasing rather than them responding.