Rust wouldn't be anywhere near where it is now if it had gated and blocked async like this. Maybe it would be 'better' in some abstract sense, but it'd be a better language almost no one would be using, like basically every other systems language that's attempted to do what rust is doing other than C++.
And if it were gated like this, we wouldn't even know about these kinds of problems, because no one would be using it and we wouldn't see them in practice.
If anything, rust does too much gating of features for too long. So many things have been sitting behind "needs stabilization" for years, living in a catch-22 of "we don't know if this is a good idea because no one uses it" vs. "no one uses it because using nightly is scary". I'm quite glad this one managed to escape that trap.
And if it were gated like this, we wouldn't even know about these kinds of problems, because no one would be using it and we wouldn't see them in practice.
If anything, rust does too much gating of features for too long. So many things have been sitting behind "needs stabilization" for years, living in a catch-22 of "we don't know if this is a good idea because no one uses it" vs. "no one uses it because using nightly is scary". I'm quite glad this one managed to escape that trap.