I'm not a die-hard fan of streaming, but one benefit to streaming movies and television is that you can watch the content anywhere on any compatible device. If you're at your parents house and The Handmaid's Taleis about to come on but they don't have Hulu, that's okay because you can watch it on your laptop, tablet, wherever on whatever. Some people like being able to view content on a portable device instead of being tied down to a TV and electrical outlet. Plus, streaming makes it easier to get rid of cable. Though lately there have been so many mergers that you're still getting bad customer service and hiked up fees. Again, it isn't that I'm a big fan of streaming, I'm just explaining the other side.
I don't buy that the push to streaming is meant to deter piracy. They could use DRM if that was the goal and Netflix implicitly allows people to share their account/password without consequences.