I remember reading somewhere that Quinn is still bitter towards us over how we prevented him getting a transfer when he wanted out, some kind of financial pay off, maybe someone could clarify. Whatever the case, ever since I heard his punditry on us. Little light inside I felt for him died, he was a great player for us in troubled times, we rescued his career & probably made him as a top flight player. So sad how it's turned out.
IIRC, he had a possible move to Sporting Lisbon that fell through the summer we appointed Alan Ball. I think we may have expected Sporting to stump up the cash for his pay off that he was entitled to because he didn't ask for a move, and that put paid to the deal.
He's always clearly had the greatest affection for Sunderland out of his former clubs, even before he got involved in a boardroom role there. It's still obvious any time he comments on their games. He seemed to me to be really happy at City under Peter Reid, and then to regard all the anti-Swales takeover stuff followed by other changes at the club as ruining a good thing we had going. I think that also affected his perception of MCFC afterwards, and his autobiography seemed to confirm that. (IMO, he was naive in his views because the club was in a pretty horrific off-field state under Swales despite relatively decent league placings under Reid, but that's another story).
I also recall that Quinn never seemed (to me, at least) as critical of or hostile towards us when he cropped up as a Sky regular during 2011/12, after Andy Gray got himself sacked along with Keys. Certainly, back then, whenever Niall commentated on us, there used to be regular moans from opposition fans on Twitter sugegsting he was biased towards us. And I recall more than one Arsenal fan asking why he so clearly preferred us over them when he'd played for them, too.
I'm not saying he was biased towards us, by the way, and admittedly he was always a bit ambivalent about the size of our investment (which I put down to his having been chairman of a rival PL club at the time it happened). However, back in 2012, I definitely didn't see him in the same way as we do now. I thought there was a definite change in his tone between that 2011/12 season and the following season, and I assumed that it was a result of someone at Sky having had a word.