getareallawyer
#1: She shouldn't be speculating about legal liability in a non-privileged medium. Even if she's correct, the risk is too high that her statements will later be quoted out of context. Keep it in a privileged medium, ideally an in-person meeting or phone call. This is absolutely basic stuff, and I'm sure it's taught even at Mitchell Hamline.
#2: Even if you disagree with a decision, don't leave a written record that you believe your company is legally in the wrong. There are exceptions (you believe you'd be personally liable, and you want the paper trail to make it clear you didn't make the decision), but there is absolutely no reason to make that record public.
#3 (Related) Don't burn bridges on your way out the door. This isn't specific to law - it's just good professional practice. The world is smaller than you think, and you're poisoning your professional network. Doing it publicly is even worse. Why would you be willing to hire someone who has demonstrated that they will publicly torch your company if you make a significant decision they disagree with.