Oh, it's just an art project. We haven't yet seen a serious non-English programming language. One would have expected one in Chinese or Japanese by now. There was COBOL in French, once, with French words and word order, but it never caught on, even in Francophone countries.
I started programming at least 4 years before I started learning English. In my experience, not knowing what "if" means doesn't change anything because I never thought of code as prose. Whether it's called "if", "si", or "wenn", all that changes in my head is "what's the magic word that I have to insert before I can branch my code?".
This, I believe, it's why localized programming languages never catch on: because it solves a problem I don't have while bringing a new problem I do have, namely, not being able to find support for my niche programming language.
Variable names and comments? Sure, those are definitely prose. But I doubt anyone suffered too much when Python chose "elif" instead of "else if" (other than developers trying to remember whether a particular script should use "else if", "elsif", "elif", or "|").