popcorntime was strictly confrontational, and was blatantly illegal. "Transforming BitTorrent media streaming" can be a good goal, but doing it illegally will cause you to be shut down. Remember grooveshark? They tried the same thing -- to create a legit service that disrupts and industry. But there's a reason they failed and spotify succeeded, and I think it's because they partnered with existing companies instead of tried to act in direct opposition.
Maybe it's time we build our core infrastructure on something else than companies that act irrationally when threatened to be sued ?