All the respect for Rob Pike, but that makes no sense: learning ANY new language should be even easier for someone fresh out of school, and I imagine they set a high enough hiring bar to be sure that new engineers can adapt to whatever they are thrown at. All programming languages are easy to learn...
The harder part is figuring out process that are repeatable and result in high velocity and code quality, but I'd imagine that this is what an organization like Google is good at!
Seems like Go is manifestation of such process. Because something like Rust is not for a repeatable process of _producing a lot of software_ by big teams with variation in experience and headcount. Rust is probably about _fewer people_ carefully designing _less_ of software, so it can be done once and stay forever.
Rust is for architecting bridges, Go is for paving streets.
The main thing is that they are so huge, they can afford such experiments. I don't put much faith in that approach outside of a huge organization, and the jury is still out internally.
And given their shift to no brainteasers and no degree, and diversity and other non skill based focus, and sheer number of employees, the bar may not be set where you think it is these days. Hell it might not be much harder than stating your political beliefs (assuming you have the right political beliefs) based on recent cultural evidence.
Wow, way to put down your engineers. What is the famously high hiring bar at Google for?