You are mostly right .
My favorite is the people who blame the security personnel for not stopping the hijackings. Up to the moment they started cutting throats, they had not broken any laws and security had no legal right to stop them boarding. AAMOF, a security person who stopped them could probably have been fired or prosecuted for racial profiling or discrimination.
I personally carried a Leatherman with two 3.5 inch blades on airplanes for 15 years. Security seldom even looked at it. The few times they did, they only measured the blades to make sure they were below the legal 4”. B4 9/11 I always wondered why they thought a knife had to be over 4” long to be dangerous. Hadn’t they heard of scalpels?