I suppose one could argue that even if Mr. Grayson did not favorably write about his paramour's game, he could be influencing how others at the publication he writes for review the game in question. Could be considered a bit of a stretch, but it isn't something that is particularly hard to address.
This all goes back to that stuff TN posted a while back, if gaming journalists adopted a standard of ethics and adhered to them they've taken away the raison d'être GamerGate has for existing. Refusal to do so is just going to cause GG to grow and grow, as it looks increasingly like they don't want to address any concerns of corruption and have descended into mud-flinging instead.
No, he didn't review her game, that's the story they're sticking with. But Depression Quest and Rebel Jam were publicized by Grayson.
I wish they would talk about the IGF more, that was truly a disgusting thing to learn.