I can't speak for the GP, but my interpretation is that safety is a feature of Go, but it's not unique to Go. Go is more safe than some languages, but less safe than others.
We can look at how many security updates Java release for a particular version. I see around 35 releases for Java 8 vs 6-7 release for Go during same period.
The fact that people consider "security releases" for compilers/runtimes to be normal and acceptable is actually extremely alarming to me, but it's different from language safety.
