> You're assuming that all subscription businesses would prefer to engage unethically with their customers.

I'm assuming some do. Apple protects me from those companies. I also think most people aren't going to steal from me, but I still lock my door. Meanwhile, you have far more faith than I do that businesses will pay a fairly high additional cost (say 4x) to signal that cancelling is trustworthy - whether it makes sense or not.

Basically, Apple currently protects me over app developers, and I want that to continue.