This design truly is flawed. Traditionally, the immobilizer in an ignition system is physically tied to the steering column. Basically, you'd need to remove the steering column (the physical pipe that goes between your steering wheel and the front steering rack) in order to remove the part. If you want to defeat that immobilizer, you need to do a massive amount of damage to the mechanism, and that damage usually destroys the electronics that register the correct key being put into the ignition switch. This is more or less a self-reinforcing security feature, since the car wont start without this electronic signal.
Kia/Hyundai decided to just tack a little immobilizer module on without integrating it into the steering column, and they didn't even do a decent job mechanically securing it to the column from the outside. That means you can jam a screwdriver in there and pop the "security" mechanism off. Once that's gone, you're left with a little (conveniently USB sized) nub that can be turned which will immediately start the car. No muss, no fuss, no recognition that it's missing its immobilizer module.
Its a fundamentally flawed design, and it never should have made it past review.