The FAA has been more proactive with holding airplanes on the ground rather than in the air.
BTW, the article a week or two ago about pax taxes supported small airports. Think of it this way, that small airport alleviates the burden on large airports. Can you imagine having a hold with 5 747's while a Cessna 152 drags it into SFO/JFK/LAX/ORD with a maximum forward speed at VNE (never exceed) of 85 knots (slight exaggeration).