It's neither. I'm saying that fixing a glitch is logically equivalent to making improvements (since we don't fix EVERY glitch, and we assume things are glitches that might not be and vice versa). Because of that logical equivalence, and the fact that we are limiting the amount of improvements we are trying to make to the game, in order to define a "line" we need to find criteria to decide whether or not an improvement is made to the game. The only real criteria for that is size of improvement...
Not every argument with a conclusion is a slippery slope fallacy, and not every argument that differs from your statement is a straw man.
Not every argument with a conclusion is a slippery slope fallacy, and not every argument that differs from your statement is a straw man.

