The actual live speedrun/TAS communities seem to get along fine. TASbot has been well-received at Awesome Games Done Quick, for instance. I think it's generally acknowledged that live speedrunning is meant to push human skills to the limit, while TAS is meant to push the game to the limit, and that these are complementary goals (and that both require a great deal of cleverness).

That doesn't change how every YouTube video of a TAS has comments along the lines of "this is dumb, ur cheating lol". But YouTube comments are always bad.