In general abstractions are not perfect, hence 'leaky abstractions'.
(As a separate tangent, I don't accept the philosophy that abstractions are merely human niceties or conveniences. They are information theoretic models of reality and can be tested and validated, after all, even the bottom level of reality is an abstraction. The very argument used to deny the primacy of abstractions itself requires conceptual abstractions, leading to a circular logic. But then, I'm not a philosopher so what do I know.)
However those abstractions and their formation still boil down to statistics. This is similar to how e.g. mechanics of macroscopic bodies still boils down and reduces to quantum field theory and gravity, even though that's not the best way to explain or understand what's going on.
An example: when we interact with other human beings, we often really only care about the surface, don’t we? Mannerisms, looks, behaviour. Very rarely do we question those with “why?”. But who does? Psychologists.
Same with any technology. Consumers don’t care about the why, they care about the result.
Scientists and engineers care about the “why” and “how”.
Now, is it important to understand “what’s behind the curtain”? Yes. But for who is it important?