That's kinda what initally Go was made for IIRC. They noticed people which job is not programming but had to write some code (say some analytics or sth) often did it in Python, and if it was too slow they moved to C or Java and were predictably terrible at it, so that's why Go was made simple and with builtin concurrency primitives.

But his job is programming. He is very proud of his C skills. If you listen to him, it crashed because C is intrinsically bad (it is difficult yes), but I guess it was also such a bad codebase that rewriting it made sense.

He also holds a grudge against me for having dared to rewrite a sacred C library he wrote (that was a constant source of segfault and I rewrote in 1 afternoon).

Sounds more like his job is producing tech debt. I saw few people like that, basically none of their code was left as most of that needed to be eventually replaced coz it was shit.