Comment by closewith

No, the vast majority of terrorist truck, car, bombing, shooting, stabbing attacks have single digit casualties due to the security measures in place and the level of difficulty (thankfully) in killing large numbers of people.

For a given number of people, money, resources, and risk, an attack against an airliner will have disproportionate casualties and effect. As above, a similar amount of co-ordination was required for Bataclan vs 9/11, with an order of magnitude fewer casualties.