native controller support is the only upside i can think of

After looking the only stand out feature is AutoHDR, but you can use SpecialK to do that (better) on OpenMW anyway.

You could probably make it work in MGE XE, but you'd need to use something like d3d9on12 first.

The reason I've never fully gotten back into morrowind as an adult is because i want a controller interface like the xbox version. Every mod that tries to add something similar always has some compromise that eventually gets on my nerves enough to just stop playing it