Reminds me of some of the anticompetitive behaviors that Amazon has long engaged in. Among other practices, they use their privileged position in the marketplace to gain insight into markets, then force sellers out of business by producing the same products at a loss. In this way, third party sellers on Amazon serve the purpose of conducting market research for Amazon.
It’s remarkable that Apple has been able to generally maintain such a cordial relationship with developers for this long. Hopefully change is coming.