Okay, this is interesting. If themes and backgrounds can be ignored by groups that don't want them, casually left as-is by groups that do, and broken down into their constituent bits'n'pieces by twin*cough*that is, uh, munc*hack*ahem*sorry,

I mean, er, "optimizers", well, that's something very good.
It's a true complexity dial, it spans all of the things that D&D should do, and -- most unusually -- that middle point between bare-bones old-school and in-depth customization, that bit where you just take a theme and a background, is something that D&D has never actually done well, because nobody's ever tried to build that into the system. (2e kits come closest, but everyone knows they were a clunky kludge.)
Up until this article, I was still fairly leery. Now I'm starting to think they might be moving in the right direction. Now we'll just have to wait and see what they plan on doing with spells and combat mechanics.