I'm not suggesting that the school is bad. The main school I attend focuses a lot on hands, and neglects kicks and grappling. I'm okay with that, even though it has those weaknesses. In fact, I don't think it's even bad to completely neglect certain things, as long as you have a way to handle people trying to use them in a fight. But, as far as I'm concerned the idea that if a school as a whole practices something more than others, that's what people will improve in, is not really something to be debated. That's how practice and growth work; what you practice will improve.