Most applications I tend to see don’t even use concurrency because they are so small and simple that they don’t need it.
Sorry but I just can't take your opinion of any language seriously or that you have much practical experience at all because of statements like this. Have you debugged.it ?
Debugging seems to be the author's coding philosophy which says it all. While I had over a decade of experience in other languages, such as Python, PHP, Java, etc.
I found it extremely difficult to wrap my head around Go.
This could be because the author's introduction to programming and most of their experience has been with some very problematic languages.