A quote in the article said he begged not to be put in jail. That would tell me that his apology was less than totally sincere. People who are truly sorry and know their wrongdoing take their punishment in stride. Their remorse is for the victim and not themselves. Insincere people apologize and dramatize because they are sorry they got caught.
It also seems that his weak behavior did not change. He caved to the pressure of quotas (according to his lawyer), and also caved when it came time to taking responsibility. It seems his crying was more consistent with his weakness of caving to pressure than it was for remorse.
It would be up to the victims to accept his apology, but I think he got off far too easy.