The masses still use Comic Sans for presentations. They don't really know or care what that serif/sans business is all about and they definitely don't care about the default font. As bad as it is, that's what I see all around.

But I'm not sure what is the problem with font customisation you're referring to. There's a dialog with 4 basic choices (from "blurry" to "crisp, subpixel) and another dialog for fine tuning where you see examples for every single option. How can it be simpler?