I don’t know. I’m not in the Academy, so I have no clue what they think one way or the other. Maybe they’re just annoyed at having to watch three and a half hour movies.
I’m pretty sure most people still consider Spider-Verse a great movie. They’re just happy that a more unconventional choice won, and as others have said, the reports about the working conditions for AtSV left a bitter taste in people’s mouths.