She was in a position of trust and should be fired, never be allowed to teach again, and I don't know what else. She shouldn't be looking at long jail term. IMO, that's just ridiculous.
75 years ago people got married frequently at 16, 17, etc.. Teen sexuality these days I'm guessing is much greater than 75 years ago. A 17 year old can go to war, but can't legally get laid.
It's a betrayal of trust, not abuse. Those boys will not need therapy, don't need heel, etc.. They'll get some street cred. If this was my son I wouldn't be happy, but I sure wouldn't be calling for her head.
Not in anyway saying teachers should be banging their students, but we need to be honest about the level of injustice and abuse.