Their point is at a higher level than a single artist's inclusion. What you're advocating is for artists to give up their rights (whether primarily or indirectly negotiated). "Just do what the lawyers say."
I didn't think Spotify had fanboy/fangirl followings, but based on your and others' comments, I stand corrected. What do I know!
I fully support artists to decide what they want to do with their music, but artists who sign contracts with labels and music companies do give up their rights, like it or not, that's how it works. And yes, Spotify enforces contracts and geographical licensing deals that dumbfuck lawyers invent because reasons. What would you want them to do, break IP laws?