Here's the summary: (leaving out some smaller arguments i.e. scala/rust vs Go language philosophy)
1. Go challenges peoples identity.
2. Challenging peoples identity makes them respond emotionaly not logicaly.
3. Other people are being deceived into liking Go.
4. People become more vocal as they attempt to sway the deceived from their erroneous path.
5. (conclusion): Therefore, everyone criticizes Go so much.
Notice all the premises could be true, but they would not strongly imply the "so much" part i.e. "a lot". It would just mean some people would respond more vocally/emotionaly, certainly not everyone.
Anyway, I think there's still some missing premise(s) which would explain why there is "a lot of" criticism for Go, if that is the case - I have no idea as I'm not involved with Go at all.
Anyone care to fill those in for me?