The thing about Go is that some parts, like channels and goroutinesI have written a fair share of Go now and have only rarely used channels or goroutines. In practice, channels are only a good model for a subset of concurrency scenarios and they come with problems.
Also, those criticizing Go are right (of course). No amount of Go usage will alleviate its shortcomings. The lack of parametric polymorphism is incredibly annoying, error handling is mediocre (Rust handles this much better), and the lack of support for even simple abstractions (algebraic data types) is jarring.
Nonetheless, I continue to use Go, because they also got a lot of things right: compile times, tooling, a very-well documented standard library, good compatibility between 1.x releases, a UNIX feel, low-barrier entry for other contributors to Go projects, and a thriving ecosystem for a relatively young language. (Of course, the JVM and Java do as well on these points, except for UNIX-feel.)