Go is a simpler-to-read language that does not involve lifetimes (as you know, it is GC'd). For a lot of smaller projects like this, the boringness of Go is preferred. Less mental bandwidth required.

I'll admit my definition of "industrial" here was vague, but I think you can get my point. I'm not trying to say that Rust isn't good in a business setting - my job also has Rust in the code!

However, for these purposes, most of the benefits of Rust in this situation are already provided by Go.