I don't think every mathematician can read any formula, no matter of the field and how advanced it is.

And for developers it's the same. However, I'll grant that PLs are evolving faster than math does, so there is more catchup-required for sure. But without that there would be much more limited progress. Think lambdas: before they were an "elite feature" and now they are everywhere and languages have adopted them and people had to learn new syntax.