I think, in a lot of ways, it is ending. Yes, Mythic raiding is still a problem, and the whole “MMO is an esport” mentality is there, but remember back over the last few expansions, and the attitude was “git gud or don’t bother.”
Between gearing, M+ changes, the actual availability of good gear (anyone remember the Cata heroic cliff), and just friendlier systems in general, I think the Elitist Jerk mentality is fading. Not gone, but not as bad as it was.