With all due respect, wanting your team to lose just to stick it up your rivals title challenge is an inferior club mentality.
Any fan should want their team to win all the time regardless, who cares what your rival is doing?
And yes I am aware of the hatred between Arsenal and Spurs, im a Man United fan, I feel the same way about Liverpool and to a slightly lesser extent, City, but would I ever want my team to throw a game to stop Liverpool winning a title, **** no, I dont care what Liverpool is doing until we play them, I only care what my own team is doing and I’d want my team to win every chance we get.
Worrying about yourself and yourself only is a winners mentality I feel and I reckon every successful club would have the same line of thinking.