IMO, the VW system is overly complicated. Some car makes let you program the immobilizer yourself if you already have a working key.
The advantage is that you can have the key cut somewhere other than the dealer and have it work. It might seem slightly easier to steal the car if you have to already have access to a working key. But with the VW system, someone could just pop out the chip and put it into a copied key, so it's not easier or harder either way.
Bottom line, if someone really wants to steal your car, they can just get a towtruck and take it away. Forcing people to go to the dealer is practically theft anyways!:laugh: