The illusion of apparent simplicity

Code that is relied on by more programs gets more attention to its reliability, safety, and performance, as the wider use allows amortizing that attention across all uses. This applies to commonly used libraries, moreso to language-standard libraries, and even more to compilers themselves.

A language like Hare, Zig, or C that is inadequate to express powerful libraries necessarily dissipates attention across all the re-implementations of semantics that could have been coded once, in one place, and got right once. Modern languages deliver their value by enabling that expression. A new language that fails to deliver what we have already learned to do in this direction is, at best, an attractive nuisance.

C has a ready excuse: its roots are in the 1960s. We should have higher expectations for a language coming more than five decades later. Hare utterly fails to deliver on any such expectations. It has no legitimate claim on our attention.