Oh there is absolutely zero disappointment.
Years ago I wanted to learn how OpenBSD worked. Some people said to me “ah you want to get into programming at OS level? I was a bit disappointed with Go. But don’t learn C, learn Rust; Rust is the future there”. So as a total novice I looked at all 3 on the page. My impressions were: Go looks easy, C looks a bit harder, Rust looks… way too advanced for a beginner like me.
Later when I heard of Zig I started reading and it looked a bit more like what I expected a “future C” to look like.
I wish I had more time and skills to do work in C, Rust and Zig. I’m a Go programmer by trade.