One problem is a matter of who maintains it. I can put together my mod, expanded sex, randomportraits, 1.0d bugifx, and the new female main character mod. If a fault turns up who's going to bugfix it, test it, and reissue it? Personally I've little idea how the sex scenes work. Nobody wants responsibility for someone else's code.
Compared to Skyrim, which has a intensely complex mod system, Strive isn't so bad at all. If you can get one mod to run you should be able to get four or more to run at the same time. Ankmairdor put a lot of work on the mod system over the last two years and it is a lot better than it was. The main problems seem to be
- not using a clean installation for the base game
- initial installation and applying the first mod both using the right versions
- upgrading versions and then running into those problems again
- finding and installing portrait packs