One minor correction. The Enola Gay only dropped the bomb on Hiroshima. Bockscar was the B-29 that dropped on Nagasaki.
He never said Enola was involved in Nagasaki.
Three cities should consider themselves lucky. Nagasaki was #4 on the target list originally. By the time the mission took off, two of the three cities ahead of it were "voted off the island" and Nagasaki was then #2 on the list for mission day as the alternate drop.
Consider Nagasaki very unlucky or those other three cities very lucky.