Zig is a great low-level language. It's much better than C, while not being so much larger as e.g. Rust or C++. AFAICT Zig does well in embedded development, and should continue to do so. Note that Zig is not even 1.0 yet.
As often happens, the online discourse has, for some reason, decided that this was an anti-AI stance, while - as far as I understand - the problem was simply that the PR had problems, which lead to Bun forking Zig.
In addition, a core Zig developer has explained why the PR was rejected, because it would introduce non-deterministic bugs into the compiler, just to achieve a speedup Zig is already gaining thanks to recent work on the self-hosted backend and incremental compilation, which are far more general as well.