"No one" in casual claims is not the absolute quantifier ("absolutely no one").

It just means "very few people".

Else we could never say "no one" in casual conversation for anything, because even the vilest/stupidest/most paranoid idea still has one/some proponents.

(And by "even the" I mean, "most", not "absolutely each and every vile/stupid/paranoid idea has one/some proponents").