This may be true, but Apple can change that policy overnight. Apple also won't let you run programs that are not on its store, and won't even give you a Web browser. It's shocking people that people are willing to accept such restrictions. It isn't my hardware if I can't decide what runs on it.
Is it really shocking to you that people treat their entertainment device as an appliance? Everything I control is something I'm responsible for patching and fixing and adding new features to. I don't mind faffing about with my Linux desktop, but the TV needs to just work.