People who provide free stuff (like MusicBee), that's a lot of work, are saints and shouldn't be demanded it, but if you did then that would be awesome.
I am shocked not more do this because now that I found out that I can, I'm so excited to accelerate my library management. Like I use 1 star ratings to let me know I want to delete something, and normally I'd just be like "I hope I remember to delete that later". I tried syncthing but the problem is most of the media apps don't write ratings to file, so it just keeps the two the same.. doesn't share progress back (and Music Bee's in built system does that too, just not over wifi- I think it adds music over wifi with the sync thing but I've yet to have it delete a song I wanted it to without connecting physically).
Of course it's not about deleting alone, because having improved library ratings rate means I can have smarter smart lists and better auto-djs. It's all very cool, just unfortunate that google makes it a pain now.