ER's point was that he had not seen any coverage of an obviously spectacular event.
And that lack of coverage was suspicious. Hard to refute, unless you have some secret proof that ER was actually aware of the ABC notice when he posted, and he was lying about it.
I (as well as a lot of Americans - including newsies) really have an interest in explosives and their uses. When a fireworks company or Morton Thiokol blows up, it is a pretty big deal in the news. A picture of a big hole or a devastated area of a camp might very well be my number one story of the morning. Your idea that it wasn't covered because no one was killed is pretty (typically) silly.
Your "point" was that ER was talking crazy. I "simply pointed out" that he was not.