I think "angry" is a bit strong, but i understand why some people overreact against musk critics. There aren't
that many people on earth able to do what he's done at the moment. Same for jobs at his time. They're able to make the tech industry move forward, and at the same time provide a show for everyone to enjoy, and be inspired by (the show, not themselves, at least initialy).
This is rare. I don't think i've had the sensation of seeing humanity move forward as much as the day i saw that car fly around earth, and the two launcher get back to earth vertically. This was straight from a science fiction movie, and yet, thanks to Elon (and all the people he recruited), that was true.
This is something that should legitimately be admired, without being ashamed of it (as opposed to being a fan of certain music star).
Doesn't mean Elon should have a free rein for everything he does, and shouldn't be called overoptimistic when he is (if not borderline bullshiter). But at the minimum, we should feel grateful for what he already did.