That ought not make them criminal.
When the consequence is death, and the reason is negligence, it seems that most states should already have criminal statutes to cover that.
As the person directly in charge of others lives she has an obligation to protect them with reasonable care. Under the law a reasonable person could have foreseen the grave possible outcome of not evacuating. In addition she was provided the opportunity to do so and refused it. She was negligent in the extreme.