I think it's a bit unfair to label what happened last night as "small time mentality". Firstly, it was a small/miniscule minority actively supporting City. It was a larger section but still a minority who were supporting us but sang "Are you watching Arsenal" and it was a vast majority who supported us but were conflicted which manifested itself in a muted atmosphere.
Ange is looking at this logically. Fair enough. But, for fans, football is emotional and there is something in most Spurs fans that doesn't want Woolwich to win the league. That would have been true if you dropped Man U and Liverpool into our situation. Can you imagine if Celtic were playing Aberdeen in that situation with Rangers winning the league if Celtic won. What do you think would happen? Or Real Madrid and Barca.
That rivalry is what makes the atmosphere at big games. That's why derbies are a thing. Not just because you want your club to win but because you want your rivals to lose. It's the very essence of football whether he likes it or not. Unfortunately, last night, we got a very unusual manifestation of it because of the circumstances around it. But, like it or not, that wasn't specific to Spurs - it would have been very, very similar for most clubs in our position.