Nobody wants to mod the game because they simply do not enjoy the game.
The gunplay is pretty solid. Space combat is simple but I can see the potential. But then there's the terrible parts of the game. I think that these parts were done so badly that they were damning to the game's popularity.
>Performance
the game runs badly and looks ugly
>space navigation and exploration
while you can fly your ship in combat you cannot actually go places in it. If you want to travel to another planet/ station/ system you need to use a series of menus to do so.
>planetary exploration
randomly generated landscapes. Mostly flat lands. Some caves that feature a few repetitive tilesets. Even the creatures and plantlife on the planets are also from a list of randomly generated ayys. There's genuinely little that is impressive to see here. A lack of things that would make you go, "Wow!".
Supposedly there is a good number of paid mods available on betheda's online service thing but I'm not going to check.