That's a pretty abhorrent oversimplication. Yes, AEW has fallen off pretty hard because they've gotten lazy and complacent due to always believing they'd have fans just because they weren't WWE, but they have had incredibly hot stretches based solely on their own merits and actually having guys that understood how to draw running their own shit.
And no, WWE isn't hot currently because Vince is gone. He's been more or less out of power since 2022 with a short return to facilitate the sale to Endeavor. They're hot because they've earned it with some really damn good booking and Kevin Dunn finally ****ing off and being replaced with Lee Fitting. It's actually insane just how massive an improvement the changes in production have been for WWE. Combined with the announcers actually being able to do their jobs without someone screaming at them constantly how to behave down to the minute detail and it may as well be an entirely new presentation.