That excludes all languages that want to write the compiler in a lower level language than the target language itself. You can easily imagine a high level language with a fast compiler written in C where if you rewrote the compiler to be self hosted the performance would drop 10-100x.
Dog-fooding is important, but it can be done outside of compiler development. If the only code the compiler team writes is the compiler, they end up designing a language that's great for implementing compilers at the expense of other use cases.
