Endgame too challenging and teamwork based (Hear me out)!

[Melisenna]

If I wanted to play a game that rewards me for being sub par maybe I'd play wow and go back to being the best on there without any challenge.

But you can't go back to a game you likely never played, doing content you've never done. The hardest content is only cleared by the top few % of the playerbase before they nerf it months later to make it more accessible. But even the nerfs are generally only 10% or so, which opens it up to a slightly bigger range of players. The vast majority however will never see the top heroic content until the next expansion rolls around.