Feels like to me fans are tired of Jericho, he needs to go away so we can miss him. That's what made him so good, we get doses of Jericho, he'd leave and be gone long enough for us to miss him. So he'd return and get a huge pop and be welcomed back.
I'm just speculating here but I wonder if the stuff that came out about him and former AEW Talent Kylie Rae turned fans against him too. Despite it being only rumors, that coming out with all the Vince stuff has turned people against him.