It's the go-to strategy for us as well, but I'll bet you dollars to donuts this is the next target for some sort of crackdown
My experience of being able to search the TV app on iOS or tvOS or macOS and then being given the option to play, buy, or rent the media is pretty seamless. And subscriptions are simple to cancel, so starting them is not a concern.
Complete opposite of dealing with cable/satellite TV contracts and advertising breaks when watching stuff.
So currently, sure I can move around and it is better than the cable companies, but the trajectory of where the platforms are headed is not a good one and trending towards behavior more aligned with what the cable companies do.
Nonsense. Cancelling is easy: https://help.netflix.com/en/node/407