and it is the same for many other "self produced" groups
first of all, "self produced" is such a misused expression. there are very few groups that are truly self produced. like M&D for example (Heechul and Jungmo) literally 100% of their lyrics were written by Heechul (alone) and 100% of their songs were composed, arranged and recorded by Jungmo. now THAT is self produced. However, working alongside other more experienced producers doesn't make you a self produced artist or group.
then there is the fact the company still gets to decide on your concept and the songs that will represent you. so this is like working under comissions lol. of course any kind of controbution and creativity counts and deserve respect and celebration. but the claim that this is more personal is an illusion. this is personal under demand.
That's why I don't really brag about the term "self produced" that much because I know people will come for me. I usually say they write and co-produce their music, since they mostly work with this 1 producer for all their music that followed them from debut till now, and occasionally 1 - 2 extras for specific songs.
The company thing though it's not just KPOP, it happens in the west as well, where singer songwriters sometimes want to push a certain song they love, but the label deem it as "not public friendly" enough for the charts or something