If consumer trust were the foundation of Apple's growth, they wouldn't have to worry about folks defecting to another app store if it was available.
The reality is that, having created a great market, they are now extracting rents by using their ability to exclude apps to enforce things that don't benefit users but expand their margins (like forcing use of their identity and payment systems).
The reality is that, having created a great market, they are now extracting rents by using their ability to exclude apps to enforce things that don't benefit users but expand their margins (like forcing use of their identity and payment systems).