UnCompdSnopesAnon has reviewed your theory.
The bleachers in back are prime seats and pre-selected by every campaign I've ever known. Now, QShirt was off to the side - BUT - he was right at the egress point. No long-term visibility like directly behind, but still excellent short-term visibility at the beginning & end of the event. Which, in fact, is probably preferred unless you want to be overly-explicit.
I judge you theory as follows:
Very Possible