And Crawford is an incompetent smartass. I honestly don't know what any TTRPG would have to gain from including him in the team.

If they hope to chase 5e's success by following in its footsteps - piss poor adventure modules, nonexistent DM support, unbalanced player options, and a game designer that contradicts himself on Twitter every other post while attempting to explain why he isn't wrong - then good luck to them, I guess.

I very much doubt that 5e became the juggernaut that it's now because of Crawford. If anything, it's despite of him - mostly because of the free publicity granted by things like Critical Role and Stranger Things, and DnD being the default option for anyone who develops an interest in roleplaying for the first time.