That’s a good thing. The ability to copy an API allows more competition, helps improve services as others provide similar functionality, and forces improvement because it becomes easier to migrate from one service to another.

One thing I do see happening is that sensitive and expensive to develop algorithm internals may be prevented from leaking into APIs. I, again, don’t see this as anything other than a win for devs. An API is fundamentally used to get stuff done, if a developer doesn’t need to know the implementation details I overall think this is a win for the developer using the API.