And in fact performance itself is a very objective criteria. Either a piece of software is fast enough or it isn't. This doesn't refer only to percieved performance, but also hard performance indicators established in the requirements of a project. Sw dev 101 really.
Furthermore, languages and their implementations can be assigned to different performance personalities, from very fast (e.g C) to slow (e.g. Ruby). Go doesn't belong in the very fast bucket, it's one level below, hanging out with Java, C# and others.
The arguments regarding Oracle are frankly worthless, but if you want to go there, at least Oracle admit they're evil and restrict their evilness to price gouging on their products. They don't pretend to be some force of good while surveilling billions of people through devices, apps and web platforms like Google does.
What we do know is that Kubernetes, Docker, Terrafofm, Prometheus, Caddy, et al. have taken off in part because Go is easily accesible and can scale. Go has risen metorically to the top just like Java did, and there are lots of really huge deployments of Go out there. The JVM will always have certain limitations and require it’s users to specialize in JVM tuning and architecture. Many users are also hesitant to support a company like Oracle, and the enterprise shilling that comes with the Java ecosystem.