Putting aside who-wants-to-be-what, a change in a common tech stack is a serious change with all sorts of implications. Arguments for and against should be carefully considered, and yes "going faster can't hurt" is not an argument.
Mostly agree; if you're a Java shop, maybe stick to Java instead of confusing all of your engineers just because you read on HN how much faster Golang can be. But again, YMMV.
