Isn't this a perfect example of how "interoperability" can't possibly be a fair use exception if APIs were to be deemed copyrighted? The easier you make it for

Isn't this a perfect example of how "interoperability" can't possibly be a fair use exception if APIs were to be deemed copyrighted? The easier you make it for existing users to switch to your product, the greater the market effect you'll have on the original owner of the API.