I guess this is a stupid person, but I'm not very smart anyway,
I'm a left handed hitter, but right handed and right side dominant. I find that I can generate more power and my swing is more fluid by using my front side more to pull my swing. I know it more complicated than that, and rear side is involved as well. But I find my front side aids in pulling more. Would this be different for a right handed hitter who is right handed and right side dominant?
I don't think anyone is stating that the front leg is not used. Although there are some that try to twist things to fit their own agendas. That said, I'm not completely sure what you are talking about regarding "front side pulling"...