OP is saying that the policy of the luggage being held by the FAA is stupid, not that preventing people from taking their luggage in an emergency is stupid. The emergency is over: the plane landed. Everyone got off the plane. Give them back their luggage.
He’s saying that because of policies like those (the FAA holding the plane), people are going to want to take their bags in an emergency situation.
And the policy certainly is stupid, as its second-order effects increase the risk that most of the passengers will die in the explosive fireball-like conflagration that could quickly follow a fire during evacuation.
He’s saying that because of policies like those (the FAA holding the plane), people are going to want to take their bags in an emergency situation.