Completely agree. I wasn’t at that game, but my son and his wife were, they were still students at the time. They said the blast was loud enough inside to be noticed pretty well.
At the time the rumor was he had tried to enter & couldn’t gain access (that rumor has since been denied). I went to the next game & just looked around thinking about the stampede & carnage it would have caused. I made up my mind right then that I was going nowhere if something happened, I would just lay down. 7000 may be a low number.