Gies is just a gigantic tool, whose preferences also happens to side with MS. I don't think people would hate him so universally if he was at least decently mentally proficient, honest or eloquent, and also had a thing for MS. But he isn't any of those things.
edit: lol this is what the owner of neogaf last had to say about him http://www.neogaf.com/forum/showpost.php?p=52064562&postcount=1112
2nd edit: something to note, this story is reported on practically every gaming site you've ever heard of and a ton of mainstream outlets too, but still hasn't shown up on Gies' site Polygon, the same one that got 750k dollars in funding from MS for a promotional documentary.