I think you mean the buffer interface?

I think the buffer interface is too complex to provide directly to users. I think an API that returns numpy arrays is simpler and easier to understand.

Memoryviews abstract the buffer interface as an object, so perhaps that’s what was meant.

I disagree with the inclination to jump to numpy. I much prefer minimizing 3rd party libraries, especially if the performance is equivalent or nearly so.

I discovered memoryview when looking at the JACK Python library. It is pretty neat. But also one of those things I wouldn't have known to look for.