Regardless of innate abilities, command does require a decent spread of exposure to a range of situations.
Fortunately with the excellent reliability of modern jet transports, engine failures, systems failures and even weather radar failures, are things of the past and the "decent spread" of situations is relegated to nothing more serious than an FMC failure. Although, I must say that to todays pilot, an FMC failure is sometimes enough to raise a sweat on furrowed brow on a pilot brought up on the marvels of automation.