Hmm. A bit over sensitive. I heard Paul's comment as trying to be cute. Maybe he's not always successful at it. Even so I certainly wouldn't have read into it all that Collins did.
Friend: My favorite Beatles song is Band On The Run.
Me: It's not a Beatles song.
Friend: Wot! That guy, that guy, Paul McCartney sings it right?
Friend: Alright! That one is my favorite Beatle song.
Paul actually could have been referring 'to our little Phil' to Phil being up in the seats when the Beatles were in 'A Hard Days Night" and Phil was like 13. In which case makes Phil look like the bigger ass than he is now for saying what he did.