Even if you leave your door unlocked, if someone walks in and steals your stuff, it's a crime. The state has an interest in prosecuting crimes even if the victim didn't do everything they could to prevent it.

Restitution and retribution are the components of justice [1] entirely about "making things alright for the victim."

[1] https://www.unodc.org/e4j/en/crime-prevention-criminal-justi...

A better version of your analogy would be if your landlord failed to repair your front door in a reasonable period of time and as a result soneone walked in and stole your stuff. Yes the theif is the primary responsible party, but the landlords negligence in maintaining the property probably also exposes them to some liability.

P.s. This is neither here nor there, but restitution is a part of criminal law.

But the post I was responding to said it should be a crime to have unsecured systems.

That is equivalent to saying it should be a crime to leave your door unlocked.

That standard is likely to lock people into buying some pretty bad software, but it does little to ensure that they're running reasonably secure systems.