IMO this isn't a gender or a trans issue. She's a woman - fine, she can be a woman. Perhaps her gender identity issues were a factor in choosing to abuse when she was a man, or informed the way in which she chose to abuse when she was a man, but the fact is that he/she/it/whatever chose to commit horrific acts of sexual abuse against a child and damned straight they should get the normal legal sentencing for it. I know that women can be sexually and physically abusive towards children just as men can be hence not seeing it as a gender issue, and IDK if it's true that rehabilitation isn't offered for women as it is for men but either that's true and disgusting and needs to change, or it's bull and she most definitely should have been put through it along with a few years in prison.
I've seen similarly lenient sentencing before, though that one was a man - I can't find the newspaper article but there was a case in Chelmsford I think around about 2000, a guy called Richard Blood had a months-long "relationship" with a 12 year old student. She told a friend and that was how it came about. According to the 12 year old girl it was all consensual, she initiated it, and she was happy with how things were going. It also came out and was well documented that the reason she started this "relationship" was because she felt unloved at home and this 40-something year old man made her feel safe and wanted. The judges response - documented forevermore in court transcripts and the local Chelmsford newspapers - was that he was an innocent man lead astray (or lead into temptation, I forget the exact wording, it was a couple of years ago when I read the article) by the girl, and that he was not at risk for re-offence. He didn't go to prison, he spent 5 years on the register and 2 years in therapy, then went on to abuse a three year old and a 10 year old as well as several 16 year olds who he plied with alcohol and love-bombed into bed. IDK where the bastard is now but I really hope it's prison.
I have also seen cases where child abuse has gone unrecognized because the abuser is a woman, specifically a case close to me which involved a woman sexually abusing a little girl from 3-5 by sitting her down in front of porno's and then forcing the girl to perform oral sex on her. The woman was also put on the register, but to the best of my knowledge nothing else happened.
Anyway, tangents aside - yes, the legal system is sometimes way too lenient. Yes, horrific abuse can be done by either gender. No, I don't think it matters/should matter that this person is transexual because this isn't a gender issues, it's a some-people-are-horrible issue, and in this instance the horrible some-people includes the judge who fumbled through this case and sentencing. I also think this is a the-law-is-messed-up-and-needs-updating issue, because it seems like a big part of the reason why this person didn't get jail time is because nothing was inserted. Fine, let that be a factor, but it's disgusting to say that penis-in-vagina is the only way a person can rape or be raped, and the law needs to expand to have harsher sentencing for sexual assault and sexual abuse of all flavours, not just the heteronormative one.