Are those stupid words required to enjoy a game?
Yeah kind of.
Its fun playing a game where you really notice your improvement, and the game rewards you for improving. Its great putting time in and getting to a point where you see players who are markedly worse than you make mistakes and you can just clown on them.
If the skillcap is too low, then there is less room for improvement and the game is less fun for people who enjoy this progression of ability. If the skillfloor is high and the skillcap is low, you can sink hours in at improving and still barely differentiate yourself from new players which is frustrating.
Its ok to play games just for enjoyment, but you have to understand that you are on a fourm of players who devoted countless hours to an aspect of WoW that is (was) strictly about personal skill improvement so the bias is always going to swing toward games that reward players who enjoy that type of thing.
Not saying that overwatch is one or the other, I don't have enough time with it yet.