Go doesn't currently run on bare metal, though I think there are forks that do. At any rate, this would be unusable for most interesting programs unless you plan to rewrite all of the things the kernel gives you in Go/Rust (though there are projects which aim to do this as well).

The most usable thing would be to prove to naysayers that it is possible to use Go in such scenarios.

Another usable thing would be to program bare metal devices without memory corruption issues.