Well, we all knew that the Kongo probably survived in some other timeline. Though who knew it would have been in this one?
A good thing too, because it was such a shame when we lost the Kongo. She was such a fine vessel. And perhaps the Federation is a little lax with incompetency. I assure you that the Kongo probably wasn't the only Starfleet vessel lost due to some form of incompetency, though most of those are probably minor starship classes.