This is not a good analogy for what happened. The LLMs were asked to obtain a flag by hacking a very specific internal target. They obtained the flag via cheating, and all the hacking that followed was targeting something entirely outside of the scope given to the agents, and an attempt to cover up the cheating.

Using your analogy would be like saying that because I gave my employee the task to do my groceries, I shouldn't be surprised to hear that they spend all my money on drugs because after all I gave them the task to spend my money.