And they needed the backup because...?
You either didn't have backup or didn't contain your agent to a place it cannot do irreversible harm.
Actually Toy Story 2 was also (almost) lost because backups were not working for month+: https://en.wikipedia.org/wiki/Toy_Story_2#Troubled_productio...
A stay at home mom working remotely (In 1998!) to take care of newborn had a copy on her computer...
This doesn't take away from your point, though.
In this case, a fault by the AI agent, bad permission management and faulty backups all seem to be contributing causes. None of them should have happened