I will if the Rust community agrees on a lighter, less complex language core.
"Microsoft, AWS, government agencys in Europe, the Linux kernel itself (the only other language allowed there is C - think about it)."
Again, they are using only a subset of the language. Linus allowed it in the kernel once devs agreed only to use the Rust core features. They even had to make a new memory allocator, IIRC.