I think what he's trying to say is that to a diehard "fanboy" anything done by another game is automatically bad. Like the guys who say "Who wants a Livery editor anyway? GT5 is a game about racing, not ruining perfectly good cars with stupid stickers."
It's a feature that definitely has a place in GT yet people ignore/reject it simply because a rival company did it first
At least I think that's what he's trying to say...
Edit: Yea, I'm not exactly sure how I got to that from the OP either...