Dilapidated equipment, drunken sailors canceling multi-national exercises, procurement corruption, a military budget among the world's lowest, regular reports of sex harassment scandals, shopping for a peacekeeping mission and coming up empty handed except for the headlines and now this guy.
There is no valid reason to not sack him since he's lost the confidence of many of the people he leads as well as his counterparts around the world and to justify keeping him because he 'apologized' is laughable.
His biggest asset is his diversity.