Yet signs of a certain crudity remain, something uncertain and immature lurking underneath the surface confidence and maturity. The demo goes to great lengths to show a gritty, unpleasant world filled with suffering and dirtiness.

This single quote just supports my view that people believe "dark & gritty = mature".

It's not obvious, but with "immature" they clearly mean those … "orbs" , whereas the rest is implicitely by exclusion from the immature" part) as being "mature".

What a mess !