To answer your last question....
Yes.
If you think Vince has a soft spot for Jericho.... which I agree.
He has an even softer spot for Austin, Rock, and Hogan.
I think he’d pretty much give them anything they want and let them do anything they want to do.
Vince right now could have a pretty strict time booked live Smackdown or Raw.
And if Rock/Austin said they wanted to be on the show to do a segment and Rock/Austin decided to take it longer and do like 2-3 segments.
Vince probably would just be like
“it’s good shyt”