It’s an interesting question. How much focus should be on apple for providing a technology with a valid use case, as opposed to the systemic issue of the authorities ignoring stalkers and harassers?
Keep in mind that each airtag has a direct link to the identity of the stalker themself. It would take near zero effort for the authorities to actually prosecute these assholes. Instead, the cases are ignored and the stalkers emboldened, until the victims have to seek refuge in any way they can.