They do bug fixes, but what you consider optimization isn’t going to happen.
Personally, I think they wasted time on DLC instead of finishing the damn story. We’re about to go on an important interkingdom diplomatic mission, possibly get our sword back, but oh wait, we need to get Hans laid first?
See? Different priorities. What you think they should do. What I think they should do, and what WH think they should do are not the same thing.