Because it's a modern, safer systems language. It fills more or less the same niche as Rust except it's more familiar to C++ programmers, or at least that's be

Because it's a modern, safer systems language. It fills more or less the same niche as Rust except it's more familiar to C++ programmers, or at least that's been my experience. I know C++ fairly well, and I feel more at home with D than with Rust.