Well for PvP maps yes they look great. It is a good thing that they didn't add to much detail like crates, decals and stuff that is only in the way or waste performance.
Of course they could look way better but that wouldn't benefit this sort of competitive map.
actually i agreed that crates, decal and etc are useless in pvp and only pull on resources. i cannot tell you how many time got stuck on a item that is still trying to render