Would you really have done that though?
If your options were
a) imprisonment in a foreign country, away from your children. A terrifying prospect.
Or
b) legally and with your governments support, leave, and go home.
You would really choose the option that takes you away from your child, your family and puts you in prison.
It’s very easy to say what you should do, but when you are in that situation, not many would.
So, in the heat of the moment, and especially since her government instructed her to leave, her actions were wrong, but understandable. However, the heat of the moment is long gone. Imprisonment was not, and probably still isn't, a definite prospect. First offence, clearly not a deliberate act of violence etc. I imagine it would be a short sentence at worst, in a country whose prison system is probably a lot more bearable than the country in which she currently resides. There is also a question mark over whether she really did have immunity.
Unless someone is advising ber that she would be locked away for a long time if she came back, then the, "I was terrified for my CHILDREN and panicked and ran away", line, no longer really holds water. She is no longer panicking. She is being invited to the White House! Apparently supported by the leader of the free world.