“It’s a daycare. Children that age nap.
Deal with it.”
That’s just it. She left the children (unattended?) asleep, to go fight a fire.
This is a common practice, especially with big nation wide chains. My wife is the director of one of those centers and has been forced on a couple occasions to fire long term excellent employees for non life threatening lapses in judgement. When the bean counters, who see a lawsuit around every corner are setting policy, these kinds of things are bound to happen.