I think it's a fair post by the SEOmoz guy. And I say that as someone who owns a reasonable amount of exact match domains and wants Google to give as much love to exact match domains as is humanly possible.
The poster is not arguing that exact match domains shouldn't get a bonus in the SERPS, but that they currently get too much. Sadly, I think he's right. Time and time again you see horrible-looking, wafer-thin affiliate sites using exact match domains to rank above High Street chains and that has to be bad for the average searcher from a usability point of view.
Of course from our standpoint as domainers and developers exact match domains are brilliant as it gives us a chance to compete with the big boys, but there will come a tipping point as the SERPS becomes increasingly filled with spammy guff.
I hope as much as everyone on here this doesn't happen in the near future, but it's inevitable it will at some point.
Cheers,
Ed
PS Was amused by your comment, johnnyboy, about the "erotic dreams" you have about affiliate marketing. Can you expand on this? Slooooooooowly.