This is the story I keep being told, but it doesn't seem to match with the reality of a language. Two example off the top of my head:
Loop variables are captured by "reference", not by value, so it's very easy to create bugs where you capture accidentally capture the wrong thing and don't have the value you'd expect.
Nulls, the billion dollar mistake. Most languages are quickly moving away from nulls (and pointers for that matter), or creating constructs that make them much safer (such as what typescript is doing). Instead go doubles down on both of these. In the last decade of programming in kernel level c, python, ruby, c++, java, typescript, scala I've never worked with code that crashes so much and is as buggy as go.
Both of these problems could have been addressed fairly easily without bloating the language. Google has people on the c++ committee; it very much feels like the creators of go had too much hubris to walk down the hall or across the campus and kindly ask a good language designer to shoot holes in their design.
Another example is "iota". How does that make code sharing easy at scale? Any time I see iota, I have to start manually counting lines, and remember the rules for if blank lines or comments bump the counter, and it completely circumvents the ability to quickly grep for a value seen in a log message. It is completely antithetical to teams of people and spans of time and whatnot. It seems more like a team of three people who randomly had ideas and ran with them without thinking the consequences through very well, or consulting the wisdom of others.