Going even further I always get emails when yearly subscriptions are charging in a few days and those emails even include how to cancel the subscription if I no longer wish to use it.

I know people love to complain about the App Store, and there are some valid complaints. But companies being forced to use this mechanism for subscriptions is a huge benefit for consumers.

Also frankly, it's a huge benefit for the developers also. There are a number of apps that I would never subscribe too if I had to use their own custom solution thanks to how many bad behaviors I have seen. But since it is part of Apple's system I don't worry about subscribing.

Edit to add:

I really hope that if Apple does end up being forced to open this up and allow apps to do their own subscriptions. That for many consumers like me, as a developer your choice is 70% of the money or none. I am not moving to your subscription service and will find alternatives.