That's one of the things that freak me out about Wayland.

The DIY/BYOB experience is perfectly viable in the X11 world. I don't think I've ever had a piece of software balk at me because I used FVWM instead of kwin. I don't want to be railroaded into a desktop environment with strong opinions and mediocre tools when there's a sprawling flea maret worth of software to explore.