Isn’t it the same issue with ANY security, though? If one provides to a malicious actor (intentionally or unintentionally) the means to authenticate to their device, that user has effectively rendered a large number security protections ineffective. The most insecure vector of any device is the user with access or admin permissions to that devices.
The best thing about stories like this is that it helps people to understand some of what makes them a target. While folks have gotten away with it for years, they will now understand that they shouldn’t enter their phone’s PIN in public without taking steps to ensure they’re not seen.
Agreed.
Although some are arguing, and I can't entirely disagree with them either, that Apple should have an option to secure the actual iCloud account with something other than iPhone PIN.
But simplistically, yes, giving away your PIN should be assumed to be devastating.