It should be federal law that any recurring service with online accounts in any format offers two click cancellation (cancel directly on the account page, plus confirmation), and any recurring service that doesn't must be cancellable in less than 5 minutes in person or on the phone, with massive fines per user if it can be demonstrated that they failed to do so.
Actual rentals of physical goods or properties are a different category, because things have to be returned, but services are as simple as removing access or cancelling future scheduled visits from personnel, and complicated cancellation processes are effectively always malicious (in the cases they aren't actually deliberate, they're at best grossly negligent).