But who picks the pickers? The suits plan ahead and begin with the algorithm.

Part of the solo hobby of listening for me is discovering stuff and getting into a favorite artist's discog in depth. Having an algorithm just recommend stuff to you ruins the fun.

Plus, my taste is weird enough that my experience with streaming services is they either slowly nudge me towards either the mainstream where the algorithm can actually recommend stuff, or a weird overfitting where they end up playing the same stuff over and over because it can't grok the true form of my preferences. (To be fair, neither can I.)