> I appreciate that Go places a premium price on simplicity, however with languages like Rust make some big steps towards static guarantees at compile time the guarantees that Go makes seem pretty weak.

Rust's static guarantees come at a price: You have to learn Rust to take advantage of them, which is apparently no mean feat.

> I am hoping Go delivers a bulletproof abstraction for concurrency.

Don't hold your breath. Go has always been and will always be about “good enough”, not “bulletproof”.