> "zero discoverability" is an undeserved hyperbole.
Actually, it's a deserved hyperbole.
It's not like Apple haven't realized their mistakes... They wrote a book in the late 80s about UI and it's still one of the best works. But they've abandoned many of their most-important guidelines, and almost always for the worse.
They threw out the discoverability baby with the skeuomorphic bathwater.