Um gear does make a difference. Not sure why you're saying only bad players blame gear.
I think he's just saying that it does but gear alone won't be a game-changer. Proper positioning + skill usage still trumps stats any day.
If players have nearly similar skill/knowledge, of course the guy with better gear has the advantage, but someone in a partial WH gear alt can still have a good chance of defeating an unskilled guy in full WH