Good shyt for Joe and it lets them bring Finn up. I really don't want them to go AJ vs Finn from the jump. I'd have them as a super group then break up over the MITB then have a grudge match at SummerSlam.
With all due respect, no. Do it.
AJ replaced Finn and led Bullet Club to even bigger heights, including the championship that mattered...but Finn started the squad.
He turns heel, leaving NXT an a$$hole refusing to fight Joe again, going on to torment AJ (with Karl and Luke) for surpassing him again, to even the playing field and begin a feud between them.
That's in the bag writing. It briskly acknowledges their history, then writes new chapters. Down the line, we can see Demon Balor introduced as an alternate personality babyface or whatever.
Introduce Finn Balor as someone who can go toe to toe with the revered AJ Styles, but still be a dikkhead, and cheat to win. A cocky prick with two serious goons, and someone who can immediately make an impact, all by interrupting the WWE main event scene.