>I for one welcome arresting people who seem to think it is a good idea to enter someones home just because they didn't get to update all their locks on their home.
I think your example is a bit too gentle.
This is more like someone kicking your locked front door down and pointing out that your door isn't strong enough to prevent someone from kicking it down.
The system was "locked" for all intents and purposes, as best the system administrators knew how to lock it. It wasn't because they were lazy or forgot, they just didn't know the door had any weaknesses.