Surely that's a different issue though? I can't buy a bunch of blurays of movies and Game of Thrones from a store, rip them and put them on my own ad-supported free service without getting in trouble. But the store doesn't have to stop me taking the bluray home just in case I do that.
It’s a licensing issue- you could do that if HBO granted you a license to do that. They don’t when you “buy” GoT online. I’m sure if you offered them a few hundred million dollars they’d let you.