This doesn’t actually help, because ending payment for a subscription doesn’t absolve you of legal responsibility, and you might at some point end up getting sent to collections over something stupid. Importantly, Apple can force companies as part of their terms of service to recognize an App Store subscription cancellation as an actual cancellation of obligation to pay.
I suppose that's possible, but it would at least put the onus on them to begin legal proceedings. I would also argue that they'd be putting their PP relationship at risk by taking such an anti-consumer attitude. Certainly this is something I want to look out for, but so far (knock on wood) it hasn't bitten me.
