She planned to create the needed conditions to draw it out.
Her plan was still risky, but it created the conditions that everyone would already be prepared for.
They would be anticipating its appearance, so they would be able to move to avoid an ambush.
If the environment, timing and other conditions were set up, then the situation would be more under their control rather than having to deal with an ambush that could happen at any given moment when they started to show any signs of weakness.
If they were too tired, then their ability to save themselves would be much lower.
If their mentality was not in good condition, then they would not be able to react in time to such an ambush.
If they needed to do anything alone that was more private, then they would be in a vulnerable position and would be a little further away from their allies, making them a much easier target.
