Re-using the same techniques such as interference and only brawls after a match
But it is a cool thing. You can't just eliminate interference, it's a part of wrestling and it'll always be there. Same with brawls after the matches, they are exciting (if booked and performed right).
The lights going out before every debut
That I agree with, they need to stop doing these NOW.
The commentators having to act like Allin has a chance against Jericho
Honestly, why doesn't he? It's a classic underdog vs top heel title match. Jeff Hardy vs Undertaker 2002, only in 2019. I remember people loving that match back then. Don't see a problem there, the announcers should sell the match like they can. They should acknowledge that there isn't much chances, but they always exists. Anything can happen, theoretically.
Rushing pushes is.
Like what? Off the top of my head, I can't point out any rushed pushes in AEW.
The referees discretion crap
If you mean why they weren't DQed last week after Mox interference, I understand that, AND I would complain if that match mattered. Like say... if it was a DQ in HIAC
But seriously, the ref probably thought it wasn't good ending the first TV main event in DQ so he went on to continue the match. I personally like that referees are now given more power with this stuff.
The terrible outfits half of the roster
I guess that's a subjective thing. All people I care about dress fine.