I mean, it's particularly unfortunate for Tesla that Musk decided to go crazy in a very public way _right now_ (he's been like this forever, of course, but until recently you had to be Very Online to notice; it wasn't on the news every day); it's at a time when it is, in any case, facing increased pressure from competitors. There's some aspect of a combination of factors; likely neither on their own would produce such a large effect.