Seems to me it is just choice.
Own it for offline viewing.
Subscribe to Disney+ streaming is the other way to get it also…
But that is where it stops and there is’nt anything wrong with that per se, but it’s obvious that stuff is still being held back or simply put the special features at this point are a secondary thought and the transfers were the big deal.
It will get repackaged with extra stuff later on down the line but it’s another 5 years at least…