Yes they have, because those microbenchmarks are tailor made for the winner, using a very specific compiler implementation with language extensions, which apparently is only valid if the language happens to be "C".
This is such bizarre cope. It's okay for a language to not have first-class numerical performance characteristics. Langauges can have other reasons to exist. Just don't like about the performance, that doesn't help anyone.
It is not coping, it is a two measures, two weights attitude when putting C into a pedestral, you even missed on C++, which all major modern C compilers are written on, and share the backend with some of those languages.