"pragmatic /praɡˈmatɪk/ adjective dealing with things sensibly and realistically in a way that is based on practical rather than theoretical considerations."

I consider Rust more pragmatic at this point. Perhaps it's because I code in C++ as my dayjob and have to deal with the consequences.

In theory, C++ is perfect given perfect developers. In practice, it's more sensible and realistic to write tricky, like multithreaded, code in Rust.

One rarely mentioned important factor: fear. It's much less scary to modify something written in Rust than in C++. Doubly so for less experienced developers.