The broader point Douglas makes is the same one Jonathan Blow and Alan Kay make. "Why are we stuck with 20, 30, 40 year old software?"

We've learned a lot and we can re-build new clean stuff based on the new, richer understanding of what actually matters. But as Alan Kay talks about frequently, anything new has to be immediately just as good and usually better than the mediocre, bloated software for people to switch.

"Worse is better" still continues ...