Yikes! The reef was 8 MILES wrong on the chart? I have a hard time believing this. And how hard would it have been for the Navy Commander to apologize sooner than "days" after the incident?
Still, this is a pretty good learning opportunity - digital charts and/or any other nav.aids are just that - aids to navigation, not something to rely upon blindly. Granted, some of the clues to navigating in a small boat are too subtle to be felt or seen on a navy ship - such as odd currents and eddies. But some clues are available to all vessels, such as the reflection of a lagoon's light blue/green colored water onto the clouds overhead. Not always available, but surprisingly helpful at times.
What a massive job getting that ship off the reef!