This was a case of an un-authorized service which creates a security hole.
No, it wasn't. The only security hole, was the security of Apple's income from customers dum enough to buy their products.
Think about this again: A non licensed repair to a car may make the car less safe, but that does not, under any circumstances give the car manufacturer the right to sneak in an willfully destroy the car. Nor does it make sense them them to do so, except to protect their own repair shop income.