I feel sad DVD commentary seems to be a victim of streaming

I remember watching the amazing documentary 'Hoop Dreams' and then rewatching it when they were celebrating an anniversary. The commentary from the film makers and cast I rather enjoyed.While I can find these movies online via streaming (I believe it's on Netflix), I am saddened the DVD commentary is not included.Was this done intentionally by movie studios to try to sell DVDs in the streaming age, or was commentary a victim of space limitations? via /r/movies https://ift.tt/2OUkJXj