It's notable that the vast majority of the above are complaints by experienced developers working on large projects that need to be maintained and expanded for years. They're not the sort of thing you notice over a weekend of tinkering on something fun, and they're not the sort of issues that beginners will run into under any normal circumstances.
All of that adds up to a honeypot for newcomers. The language has some deep issues, but they're not the kind of things you're likely to notice until you already have 200k lines written and it's too late to switch to something with a steeper learning curve. Saving two weeks of confusion when you're learning ends up causing a lifetime of headaches down the road once you're an expert.
In other words, Go is PHP for systems programmers.