In My Humble Opinion, this is one obnoxious website. It's stark, it's arrogant, and - most unforgivably - the actual message is crammed into a tiny scrollable box that severely limits its readability.
And while I certainly can make horrible-looking web pages (some say that's the only type I make), I sincerely hope I don't fail the usability tests in such an awful way.
As for the assertions, themselves, the medium destroyed the message. I didn't waste my time scrolling through that minuscule textbox. What little I did see were mostly superficial impressions and they fell into the spectrum of A) Yes, B), That's something I expect to see in the next release (assuming that the standards in question are stable by then), C) No, you idiot, it's done that way for a reason.
An IDE is no substitute for an Intelligent Developer.