I've worked in the games industry as a programmer for 10 years. A lot of that has been implementing UI based on designs from UI/UX experience folks.
What we have now is pretty horrendous, and if it wasn't for D:OS2 being very similar, I'd pretty much have to imagine that they are aware and even having designs ready to go, but haven't got to implementing them yet. I imagine it's on their list but because it's technically functional, they want to devote their time to things that aren't yet functional.

Let's keep up the feedback and hope it doesn't slip from their roadmap.