Because a lot of the time, exactly how is very important. The devil is in the details.

I would say that it depends. Python and JS, two of the most used programming languages, abstract away memory management and threading details that most of the time you don't need, but you can "drop down" to write code that does pay attention to that within the language (building an object pool and reusing it, or memoization, etc) and if that's not enough, go to the "deeper" language like C/Rust to handle those cases with first-class primitives.

That's what all the C engineers told me about manual memory management.

Of course, there are cases where they were right.

I'm not sure I agree with the fact that an abstraction is always the answer, but your last sentence outlines precisely one of our motivations behind Marsha. You can specify an imperative set of steps in the description of a function/program, or you can (in the future) write a Python function that you use from Marsha

The first sentence was a little tongue in cheek, so I'm glad that you didn't 100% agree with it. :) But it was a all-too-common paradigm in my early years as a Java developer.