possibly because you come off as getting ahead of yourself. I mean the honest truth is that whatever you learn in those classes is a small amount of the material you'll be learning in med school. You'll cover the material of an entire semester in less than a week in med school, so you'll be learning it regardless, and everyone else will have fully caught up with your knowledge in that week's end. In that sense, though, it's just an unnecessary class.
Physiology does have some importance on the MCAT. But so does general biology. Whichever one you don't take, you'll have to learn on your own. In my experience, learning the MCAT physiology was a cinch and not hindered by not taking the class. If you do your path, you might find the same thing for general bio being a cinch to learn on your own.
Either way, take what courses you want, making sure you take a biology lab alongside, just realize you're going to be different than the huge majority of applicants in terms of how you completed your biology pre-req, and that's not a positive. Whether or not it's a negative? who knows. it might just be a whatever.
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