I don't mean your incredibly fast time of 29 minutes for this section but every single person that I came up behind and said either "rider behind" or "passing on left/right" moved out of the way, even on single tracks. Even some people I didn't say anything to asked if I wanted to pass them. You must have just been near some arrogant people.
It was a one percenter. And the guy in front didn't say anything to him either so he kept on going. If I had been behind him I would have let him know.
Would have been pretty hard to pass 2 people at once in that section of trail.
I had a few people pass two of us at once - generally through the middle of us. Lunatics.
Well, I only did that once when two guys were pootling along and chatting to each other. My usual call is "on your right" or "on your left". This time it was "through the centre" ;-p