Opinionated software is tremendous. By removing bullet points and telling users to read 5 some odd pages of dogmatic documentation you're letting the passion ooze from your project. Its saying "if you don't care about your window manager, we don't care about you". Except in 13000 words instead of 13.
Enlightenment has been around since 1997, when "the internet" was still a dorky-sounding term (and it wasn't equated with "low attention-span theater").
Ever hear the old saw "Unix _is_ user friendly; it's just picky about who it's friends with." ? The E/EFL reflects this attitude, and you know what ? That's their prerogative. I don't think they're particularly worried about gaining huge adoption.
Not every piece of software is written to pad a resume, or try to take over the world, or make millions of dollars, or to build up somebody's ego.