Those 80% sometimes DO get something out of it - when the resident nerd can fix their broken document because it’s Markdown or WordPerfect.
Just because I can’t fix my car doesn’t mean I want an unfixable car.
Agreed, but that’s the tension.
There’s no free lunch. On the flip, that user wants the complex features of the platform, and exposing them to a markup language takes elegant markdown and turns it into html or ooxml.