The phrase "point cushion" means having a comfortable lead or advantage in a competition or game. It refers to having extra points that provide a buffer or protection against potential loss. Full definition
A 5 point cushion at the top is the minimum we need to feel in the least bit comfortable, and at the moment we don't have that. (justarsenal.com)
They have a seven point cushion between them and the relegation zone, however as shown throughout the course of the season — things can change very quickly. (caughtoffside.com)
They now have a four point cushion on the bottom three, which represents a huge turnaround. (latestchelseanews.com)