You have to remember, you are replying to the ‘Prophet of Doom’. The clue is in his username.
As you rightly point out, every PL ground has a shit atmosphere throughout the season, not just City, dependent on the match, the opponents, the score line, etc.
One thing that is constant most of the time is the support from away fans. City’s away support is up there with the best away supports.
Newcastle fans were quiet until Newcastle scored. Villa fans were quiet last night until Villa scored. Old Trafford was a morgue against Spurs. Etc.