Surely it wouldn't be that much effort from Parlophone to chuck out a definitive B-Sides playlist/album? So many of her best songs from that era were B-Sides that you can't stream. It's a crime to her legacy! Isn't it just a matter of pressing a button for them?
If they didn’t care when she was signed with them I doubt they would care now. Nothing will happen until probably Kylie owns the rights to her Parlophone catalogue. Which is not far off now.