Yeah, that statement is so dumb. Even if it's hugely successful, a game of this type is made for a niche audience. That niche audience does hate microtransactions but they're in no way representative of the mainstream.
I think, with 700k concurrent players, we need to recognize cRPGs may not be as niche as we previously thought. However, your point stands: this isn't going to hurt anyone's revenue from MTX.