One could make an argument about data races, for example. Rust prevents them at compile time, Go does not.
You could also make an argument about compile-time guarantees more generally.
I'm not sure it's really a great argument, but you could make it. I think the parent's statement that it's only Go because it's made by Google is demonstrably false.
One could make the same kind of argument with GC lang vs none GC ( RAII doesn't protect from everything ). OP said "much safer" Rust is not much safer than Go, maybe it is safer but definitely not "much safer"