Also why I invested in the hardware and software for Blu-ray ripping. I now have a Pioneer drive in a USB enclosure, and can now rip even 4K Blu-rays from any region. So many special features I was missing out on, though a lot of disc releases are cheaping out on them these days.
Only annoying part about ripping is the freaking maze of playlists on many Blu-rays, especially for Special Features, and none of the player software I've tried yet has a feature to tell you what playlist and video file you're currently watching. So you basically have to rip everything and then check each video file afterwards.
I figure not fixing that is 10% not knowing they could, 20% doing so would make it easier to rip stuff, 70% doing nothing costs them nothing since you're supposed to be using the Blu-ray interface anyway.