Never. Apple is a walled garden. They don’t cater to pirates (even though you may rip your own blurays).
Even if they do, the audience for streaming bluray remuxes are so small that it’s not worth bothering for a company of Apple’s size. The average user only uses streaming apps, they don’t even know or care about bitstream.
Also, can you provide me with a source citing new DV layer support in tvOS 17.1? I can’t seem to find it on Apple’s website.