This is true, but Patrick does pop up on a lot of Go threads saying negative things. If the Rust team doesn't want to be perceived as critical of Go then they shouldn't be so vocal about it.
I haven't felt that way about pcwalton's comments. Maybe I'm wrong. Care to link some comments?
And sure, I did end up learning quite a bit about Go. No, Go didn't make all the design decisions I would have made if I were designing the language, and yes, I've posted about some of those on here (null pointers, generics, zero values, lack of memory safety when racing on maps). But that doesn't mean I think it's a bad language, and I'd even like to use Go at some point for some projects (lack of time, argh).