Chris knows his shit because he has been in the industry for the last 20+ years. He has the expertise and access to parts that very few people have nationwide. He has also spent a lot of time under these cars and when he unequivocally states that it can not be done, it can not be done.
Let's put all that aside for one sec and look at it this way. Everything in our cars comes down to the electronics and essentially the BCM. You f**k that up, the car isn't going any where. Try it at your own risk if you so choose. Whenever something goes wrong with mine, I give Chris a call because at the end of all the ranting, kicking and screaming, he knows his shit.