'The Internet' is never satisfied. that is all. I know many gamers who a perfectly satisfied, thus, they don't post on the internet.
its like saying Christians are never satisfied. no, idiot loosers who form 'lobby groups' and ruin people's funerals with 'protests' are never satisfied.
he begins with the argument that he's more interested in new game play mechanics. but this is confusing the issue. he wants games to be more difficult - a not uncommon, and reasonable complaint - so when he says he wants new game play mechanics, he means he wants the challenge that something new brings, not interested in the novelty. thus, in the case of portal, it may be new, but even with an unseen mechanic, its still not difficult (unless you play the extra maps). which is why he SEEMS hypocritical, but only because he confused his argument.
with portal, its always only fair to remember that it was only one of 3 games you got for the price (if not cheaper) of one normal game. which justifies its length, not to mention the length was necessary to achieve its overall awesomeness.
he is a 'core' gamer (or at least the character is, pure pwnage fyi), more than that, he's a twitch core gamer, even though he's more RTS than FPS, this is still fairly twitched based compared to the slower puzzle solving of portal.
its just a case of "mainstream n00bs taking over and dumbing it down for everyone"