Nobody who was there in the stadium that night ever "mocked" that high line that night. It was, rightly, seen as a statement of intent and a clear break with the philosophy of the previous 3 managers that Ange had been specifically hired to do.
However, you're right that subsequently a lot of the very worst type of Spurs fans hark back to that night and mockingly mutter "It's who we are, mate" like they personally despise Ange for ever saying it and ever holding that footballing philosophy. The prick in our row in the South that every hates does this all the time - he actively gets angry when the Ange chant gets sung. Imagine it?!
I couldn't' understand why it was such a lightening rod for these types - but I listened to Talksport on the way back from the game and was exposed to their talkback show for the first time and now I have a theory:
Jason Cundy is some no mark Chelsea twat who loves taunting Spurs. He uses Ange saying "it's who we are mate" as a sound grab. So it dawned on me that all the worst type of Spurs fans - the ones who call our manager a "fat fucking useless Aussie cunt" and the like - must all listen to this shit all the time and get triggered by it.
Imagine being affected by Jason Cundy so much you don't cheer in the stadium? That you want the manager sacked so Jason Cundy won't be able to take the piss?
Please guys - for your mental health STAY AWAY FROM TALKSPORT!