I would say it's in a small subset of people who think like computer scientists rather than like software engineers. Computer scientists think about better syntax for computer languages. (I don't think that this is actually a better syntax, especially given the already-established conventions. But thinking about array indexing as a function call is, in my view, an interesting take.)

Software engineers, on the other hand, worry about how to efficiently write non-trivial programs. For that problem, this change doesn't move the needle whatsoever.

Most non-junior programmers think more like software engineers than like computer scientists. And even many who think like computer scientists can see the forest, not just the trees.