I think you're mistaken if you believe that the majority of Mac users pick their system for "internals." I'm covering what I believe most readers care about in the OS. Could I be wrong about what they care about? Sure. But you can, too. As long as the "internals" get the job done, I think they care little about why or how. If you don't like the writing or the "attempts at trendiness" (yeah, really), that's perfectly alright. Not only are you allowed to skip it, you can also come in here and say why.