> On generics, I think the team’s position has mostly been that it’s a big project and there’s been other priorities like rewriting the compiler in Go, improving the GC, etc. And that in the spectrum of trade-offs for generics systems they didn’t want to go all the way to Java or C++.

That was not the initial team position. Their initial position was "why would you even need generics? Please provide us a usecase". They actively denied there was a need for generics.