I'm such a man and mostly can't read that page.
the rest of the page actually is grey.
The entire design COULD use a little bump in contrast to aid readability though
The fact that he found the site difficult to read (like everyone else), he attributed to the most likely cause of such experiences in the past, i.e. his color-blindness, rather than the fact that the design is just really hard to read.
That the design is so difficult to read is done mainly to make the form pop out by contrast. It's a cool effect, but there's no way i'd deploy that for mass consumption. It's a piece of artwork in it's current state (albeit a really cool one).
However I agree about the contrast, I checked on my external dev monitor (vs. my super bright MBP screen) and the contrast could definitely use some work.
Partial red-green color blindness is very well understood. Nearly all colors that should be distinct still are but, yes, apparently I don't see fire engines and carrots just the same!