Because they can. Time and time again, useful idiots have proven their dipshittery by sucking off the people taking them for a ride.
A main tenant of business decisions is to fuck over your customers as hard as they're willing to be fucked. Since nobody has any standards these days, corporations make a killing.
What happens when restraining/de-escalation tactics don't work and the unarmed civil servant gets raped and/or murdered?
A lot of people never see the inside of a psychiatric ward because their behavior is too dangerous for them to be brought in safely. If it was up to a nurse to apprehend them, some people will just take advantage of the opportunity.
See? Apple users are as dumb as a sack of diapers and deserve to be taken advantage of accordingly.