It wasnt to get back in WWE or I think to even uprank Tony per say
It was either
Create some buzz on the return with TK's blessing
Simply go there cause he wants to make amends and settle things (Naive to think but also possible)
Did it to show that he can squash beef with anyone and its the bucks who arent wanting to clear the air and is waiting on them.
Ultimately I do think its a mix of the third and second one cause I think hes a bit concern with his legacy. I dont think he wants his career to end like this or if AEW does fail eventually for him and the brawl out to be the reason so hes working on every aspect even if its just for PR purpose