They're just bad at UI in general. Every one of their RPGs end up with a UI mod that makes their terrible menus not only useable, but infinitely better than the crap they made.
I was mainly after a mod that would show how much of an item I have in my inventory when buying. This mod does that and more. The achievement mod just keeps achievement enabled with mods installed.
Skyrim needed UI mods, and to wit, still needs UI mods, despite being re-released like 15 times with limitless opportunities to improve basically anything - instead they focused on high resolution textures, which is something that the fanbase basically already makes on launch week.
Weren't the anniversary texture packs (or special edition, forge when they got introduced) so poorly optimized most guides reccomend against using them over moder developed ones? Been awhile since I've modded akyrim, could be thinking of Fallout 4.