Why then would Go not fit? It prioritizes developer experience (documentation, automatic formatting, etc.) with a GC
Things like this might be small, but they add up, and at the end of the day, the frustrations that I encounter when writing Rust are smaller and less frequent than the ones I've had writing Go. Obviously stuff like this is subjective, and there's no way to make a language that satisfies everyone. I think there's empirical evidence that there's an audience for a language that fits the niche I describe that Go doesn't fill though.
You're right that judging on the engagement of this post and others in the past there must be a big appetite for a language somewhat like Go but with fundamental differences. It's really quite interesting how Go seems to be so polarizing, they really nailed some things and really missed on others.