But it really is, in a sense that another program is required to interpret IL format, even if it is JIT-compiled after loading. Think of it similar to the ELF interpreter for dynamically-linked binaries.
Speaking of compilation to a self-contained binary, I hope in the future G# will support it. No mentions as of today though.
"Go ... ergomonics"
"G# compiles straight to managed assemblies and runs on the modern .NET runtime"
These two are nothing close because it completely misses Go's ergonomics of compilation to portable static-linked binaries. For language constructs, maybe they have similar ergonomics, but the language is not only constructs. You have to ship your programs somehow, and this is where requirement to ship both binaries and the interpreter for them, sucks.
Speaking of compilation to a self-contained binary, I hope in the future G# will support it. No mentions as of today though.