With his "let me be me" mention, safe to assume AEW wouldn't allow his dick-based offense silliness.
I would say you're absolutely correct. He said he made a decision to stay an independent wrestler just a few weeks before Dynamite launched, but I guess that was a way out of the "I'm sure he's going to AEW" thinking.
He also mentions in his Twitter post that he also gets to keep all indie dates. Maybe AEW wanted him to be exclusive and he wasn't willing to give that up.
The only time I enjoyed Joey was in Lucha Underground where he stopped with the dick crap but played the sleazy cop really well. If he can play more sleazy and less dick stuff then he could be a good hand, him and Johnny Swinger could form a fantastic retro style tag team.