Just read the massive post, and it honest to god seems like a huge bitch/whine post. If it was zerg winning constantly, I don't think he'd give even half a damn. It's just because "his race" is "underpowered" that it sucks.
That's not what that post was about at all. He lined out some clear reasons why the ZvT early-midgame is lacking in viable options for Zerg vs. viable options for Terran. Read the words without the impression of the player changing your thoughts on the content.
e: You sort of clarified yourself, but Idra is not a "little bitch" in that post at all.