Yep. And I do wish Guilani had avoided that pitfall. Just because Guilani did not see thousands of US Muslims celebrate, it does not mean that it did not happen.
But that doesn't leave Trump off the hook either. He needs to either back up that number, or just say that he was not speaking literally, and then move on.
It’s apparent that you don’t follow Trump. When he said thousands, he was referring to world-wide celebrations, not just in Jersey City. And, I’m sure the number ran into the thousands world wide.