Earlier quoted context omitted.
Allowing alternative payment systems. This would be absolutely huge for small devs, as you no longer have to pay the ridiculous 15%-30% rent to Apple.
Oh goody. I get to manage my own payment system. And have to worry about being tax compliant in every country and state. And deal with logins, and refunds and fraud and uptime and customer support. Where do I sign up?
This is the free market competition that tech is supposedly in favor of.