There has been no suggestion in this case of any "serious" crime - or indeed of any crime at all. If there was, charges would normally be name.The issue of settlements is one thing for the culprit and the victim - but isn't the question really whether or not customers of the AFL product should be aware of serious crimes committed by players and officials?.
In this case, a female was made to feel "uncomfortable" in the workplace and as a result, decided to resign. She did not want this to go into the public domain (understandably) and wanted a confidential settlement which was duly done.
This is common in the corporate world - and isn't an indication of any actual crime being committed, which mostly do end up in court.