Seems to be the case. It is annoying to be sure. But then again when you’re on top the leader board, it is to be expected. How many good shots did Mickelson make when there were also camera clicks? To blame a poor shot on the cameras, or on the course conditions, his caddy, etc. is the type of think he does all too often and why I don’t particularly care for him as a player.
He did not blame his shot (which wasn’t all that poor) on the cameras exactly IMO. But yeah, if he was leading by two it probably wouldn’t have bothered him as much.