I agree with you on everything, although I have a different take on this. His actions were stupid and reckless. Someone shot at him. Rather than take cover, because he couldn't know if the threat was still there, he put his head above the parapet. He also put his secret service team in danger. Any further shots would likely have hit them, or more people in the crowd. This would have been explained to him in briefings. He'd have been coached to follow orders. He's one lucky ignorant idiot.