.... the law is what it is.
That's what I would have thought ~ and it seems that this is the line being taken here.
Not to veer off-topic but this reminds me a bit of Woody Allen. He became sexually involved with a girl who was raised as his daughter, and Hollywood didn't bat an eyelash. It may not have been illegal, once she was of age, but it's still creepy and wrong, i. m. o.
I agree ~ not illegal, but was it moral???