Unless one knows the particulars and the details of the crime, the defendent and the case it is not fair to judge a judge too harshly. There are several thousand sex offenders who have to register as such even though the relationship with the minor was consentual and ongoing. A close friend of mine turned 18 and was still having a sexual relationship with his 16 year old girlfriend of 2 years and the parents of the girl waited until his 18th birthday and had him arrested. He got probation and they got married on her 18th birthday but he still has to register as a sex offender.
He is 50 years old and sexually assaulted his fiancee's 12 year old daughter over a period of two months. How much more specific information do you need to know that he needs to be in jail?