She should be in prison for life,
anyone who has sex with a minor should be removed from society
She should go to jail for violating the teacher-student power imbalance. But calling a 16 year old a minor who requires the level of "protection" of life imprisonment of a sexual partner older than a certain age is utterly absurd.
As far as the sex is concerned, the same acts with someone his own age would pass with a wrist-slap at most, and goes on by the millions every day. The predatory sex laws are massively misapplied - a sixteen year old boy is NOT in need of "sexual protection" such as, for example, a pre-pubescent child. To compare the two destroys the integrity of the law itself.