Now you mention it, there was a distinct lack of chanting/singing on Saturday.
There were a few near me in the Main Stand who tried to get things going, but you kinda expect the Main Stand to join in on the back of the Street End, not the other way round.
I was speaking to my brother at half time about the mechanics behind a good atmosphere. We both agreed Saturday was a strange one.
Obviously there is the usually contributing factors of: competition; importance of match; the opposition; our and their current form; time of day.
Now it wasn't going to be a complete spectacle, but people seemed happy to be back to league football after what felt a long break.
Yet, the atmosphere was dreadful. It was palatable even before kick off with the mediocre cheers for when the line up was announced.
Strange one really and as you mentioned, if the Street End aren't vocal then the place can seem like a morgue.