I don't see why people have perception of IDE being a bad thing. In past 15 years or so, I have never been in a situation where I was on a system where some IDE was not supported, and I wanted to use it.
They are everywhere, just like vim. That's like mocking the Gmail cause it needs a browser, while praising mutt cause you can be lost in Jurassic World with an Apple II which cannot run Chrome.
The build times of Go 1.5 are not that fast. That point is not that valid. I also don't see much point in have competition of build times among languages that compile to binary. Rust, Go, C are all fast enough.
I'm sure he has good points below (I see testing as one), but he started out bashing Java, after which I genuinely did not want to read the article. I'm not a Java fan, but I find the language extremely non-assuming, very less opinionated and quite useful. If Go one day has half a million repos of libraries, given it's composability features, it will have names just as fugly as some Java classes. Java's standard libraries are actually very clean.