A long time ago we wanted to know if this could be a thing, and basically for the same reason they haven't figured out how to glamour Odin's armour yet, they can't do hoods that fold down. It's something in the basic rendering of gear that makes it fuck up. they couldn't get it to work and so they appologised and moved on to more critical things. limited time frame and all.

Wether they could make it work given more time and focus is debatable, they know a lot more about their systems than we, so what seems simple to us could require some deep recoding in the rendering engine, which isn't feasible for many reasons.