If you give a stranger access to your credit card it doesn’t get less risky just because you rent them a apartment in a different town.
The problem isn’t the deleted data but that AI "thought" it’s the right thing to do.
If you want perfectly secure computing, never connect your computer to the network and make sure you live in a vault. For everyone else, there's a tradeoff to be made, and saying "there's always a risk" is so obvious that it's not even worth saying.
Someone breaking in into your system and doing damage is different to handing out the key to an agent that does the damage.
AI has still too many limits to hand over that of responsibility to it.
And because it also endangers third parties it’s reckless to do so.