Keep in mind just how old the language is, as it started as S in 1976. It was intended to be a glue language for Fortran and C.
Keep in mind also that it's easy to rewrite the bottlenecks (which are only a small part of most programs) in C, C++, Fortran and other languages including D. That may not be what any particular person is looking for, but that's traditionally the way things have been done.
Keep in mind also that it's easy to rewrite the bottlenecks (which are only a small part of most programs) in C, C++, Fortran and other languages including D. That may not be what any particular person is looking for, but that's traditionally the way things have been done.