Plus he is a pretty mediocre public speaker...yet puts himself out there & makes an impact
Yeah, there's a good bit of production involved, but it usually feels like when a buddy is showing you something really cool that he made.
SpaceX doesn't need Vince Offer.
As for Mr Musk's personal style, I found this interview quite captivating. All the more so for his lack of bluster and posturing.
Elon Musk never says rubbish like this which feels totally markety. When Elon Musk rants about something it feels more like a geek who is really excited about something, rather than slick market speak.
Maybe, that is how you market to geeks..Know your target audience and all that...Looks like it is working!