Notably it was not the fault of a lack of air dominance, but a security failure on the ground. The result is the same, the worst loss suffered its worst airpower loss in 60+ years by one metric, or since the Tet Offensive by another.
"The Taliban attack on an air base in southern Afghanistan on Friday drew coverage for the way the insurgents cloaked themselves in U.S. army uniforms to gain a tactical advantage, but few have taken note of the historical proportions of the damage inflicted. John Gresham, at the Defense Media Network, has published a detailed account of the attack on Camp Bastion, in which two Marines were killed, six U.S. Marine Corps jet fighters were destroyed, and two more "significantly" damaged. Those facts were all carried in most reports, but if that just sounds like a typical damage report from a decade-long war, you're wrong. Gresham explains the devastating damage done to VMA-211, the name of the Marine Corps attack squadron that was most affected last week, noting that it is "arguably the worst day in [U.S. Marine Corps] aviation history since the Tet Offensive of 1968." Or you could go back even further. "The last time VMA-211 was combat ineffective was in December 1941, when the squadron was wiped out during the 13-day defense of Wake Island against the Japanese."
He spells out some more of the details of the attack:
Eight irreplaceable aircraft (the AV-8B has been out of production since 1999) have been destroyed or put out of action – approximately 7 percent of the total flying USMC Harrier fleet. Worse yet, the aircraft involved were the AV-B+ variant equipped with the APG-65 radar and AAQ-28 Litening II targeting pods – the most capable in the force. Given the current funding situation, it’s likely that the two damaged AV-8Bs will become spare parts “hangar queens” and never fly again. A Harrier squadron commander is dead, along with another Marine. Another nine personnel have been wounded, and the nearby Marines at Camp Freedom are now without effective fixed-wing air support. The USMC’s response to this disaster will be a telling report card on its leadership and organizational agility."