Gee, with content being as hard to legally stream as it is, I can't help but wonder why copyright infringement is so popular. Oh wait, I just answered my own question.
IDK about the CRTC (I've literally never heard of it until now), but I doubt the FCC has anything to do with the industry's insistence on using per-country licensing. Ultimately, I would blame the entertainment industry's constant decade-spanning power grab. They think they can do what they want, and anyone who disagrees with them is a "pirate". FCC regulations (and presumably CRTC regulations as well) are a completely different topic.