I was just taught that when you do something wrong or stupid, you actually say “I’m sorry”. I have more respect for Louis CK for handling it the way he has as opposed to the way most handle it, but like I said, I was always taught that an apology includes “I’m sorry”.
You've got me thinking; maybe children being taught to say, I'm sorry" is why I personally don't take "I'm sorry" seriously. With too many people, it feels transactional - they insert the language they think the social contract demands, and then expect their victim is obligated to offer forgiveness or put themselves in violation. Like Kathy Griffin's apology. By contrast, I didn't hear anything in Louis C.K.'s statement suggesting he'll be holding a press conference in a few months complaining that his apology didn't work to undo the damage to his reputation, so he's taking it back.