Well yeah, a teacher is in a position of power. It's not good for any teacher to bang a student. Especially when you have these married teachers with kids embarrassing their husbands and children with their behavior.
There is also the issue of how this seems to be a bigger deal when it is a female student with a male teacher as opposed to a male student and female teacher. We assume the teenage boy was having the time of his life, but the girl was this poor innocent thing manipulated by the evil teacher.
It is getting better now with some of these women getting some pretty heavy sentences in jail for this, but it is still not really equal. I have never once seen anyone comment on how the female student must be high fiving her friends and how she is lucky because the male teacher is attractive.