I don't recall stating that women shouldn't train their lower halves. Just acknowledging that there are some differences in how the upper and lower body respond to training. I wouldn't tell a female client to do shrugs, but that doesn't mean I would have her ignore her back and delts. There's a difference between making excuses not to train (which is what the majority of the "I don't want to bulk" crowd does) and modifying your routine to get the results you're looking for.