You're misreading the comment. It's not that "for your safety" always implies tyranny, it's that tyrants always prefers to say that they're doing things for your safety.
Maybe it's because I'm working a lot with V8, but that looks quite a lot like most C++ generics I've been looking at lately. Especially when working with concepts, it's easy to end up 5 or more nested angle brackets in.
The argument was "I don't want to learn Rust, I'm not going to learn Rust, and if you put a non-C language in the codebase, I'm going to break it without giving a shit". Not sensible in the least.