That's their problem (well, and the problem to some degree of the people they insist on it from). But it doesn't change that you can't talk about why you use the GMing style you do without taking the time to think about that.
Which is fine but after a while it becomes pretty pointless. I can post until my fingers are tired about why I do what I do, why it works for me when other styles would not. I don't think it really changes anything.