Perhaps I misstated. I realize that on-duty security personnel and police returned fire and accounted for hundreds of terrorists. Security personnel at the Nova rave party, in particular, made heroic efforts. It was the lack of civilians, shooting back with personal firearms, that surprised me. Am I wrong?
I have no doubt that there was serious dereliction from IDF combatant command and intelligence.
You are correct all around.
Note that festival goers and kibbutzniks next to Gaza were mostly suicidal Leftists to start with.