If you look at Rust from a systems programmer perspective and compare it with the systems languages OP lists then, yes, safety is THE most radical feature.
But Rust can compete on so many more levels. Web services, user facing applications for example. Languages competing in that space usually bring memory safety, so it's kind of a non-issue. Safety enables Rust to be a viable choice for these tasks, but it needs more than that to be on-par with the other languages. And Rust's got plenty of things going for it, so there's nothing wrong with stopping to play the safety card (since that is expected anyways) and painting Rust as a language that is actually fun to work with.
If you look at Rust from a systems programmer perspective and compare it with the systems languages OP lists then, yes, safety is THE most radical feature.
But Rust can compete on so many more levels. Web services, user facing applications for example. Languages competing in that space usually bring memory safety, so it's kind of a non-issue. Safety enables Rust to be a viable choice for these tasks, but it needs more than that to be on-par with the other languages. And Rust's got plenty of things going for it, so there's nothing wrong with stopping to play the safety card (since that is expected anyways) and painting Rust as a language that is actually fun to work with.