Go is easier for onboarding, it's fixed the major issues people have had with it - it has modules, it has generics. It's easy to package a binary versus deal with having a Python venv.
Go is just the best common denominator and that's what the majority of people need. I really feel that people want to use Rust because it's interesting and fun, not because it's really the better tool for the job. The vast majority of applications can use GC and are not resource constrained by Go's runtime or binary size.