Zig is exciting to people that still actually like C. Is that a rationale choice? Not very often. Is it a wrong choice? Also again not very often. At least, not for anything in scope of a solo dev.
The industry where it seems strongest positioned is embedded. Will it actually break into that domain? No idea.
People that like C, won't move from C and don't have many reasons to do so.
It's the lingua franca of software development.
Zig is appealing to the "I'd like to work in a C-like system programming language but I'm not a C veteran" crowd.
Not a small crowd by any means, but will always be a niche.