Apology speeches are best when they actually include an apology.

An apology needs to be an acknowledgment expressing regret or asking pardon for a fault or offense. An apology means something when the audience decides that it is authentic. The audience decides not the speaker. It is not an authentic apology until the audience identifies and accepts it as an authentic apology. Unless and until the audience decides that the apology is at the very least an “I’m sorry” and at the very most “I was wrong,” it does not count as an apology.