I've seen the videos, and really I don't think anyone would think this is an easy installation. Sure, if you have the tools and are used to working on cars, it's a piece of cake.
But for others, what's the point? The hitch plus wiring is going to cost over $400, and even if you are "handy", you're looking at a few hours at least. If you enjoy working on your car, I get it. Just make sure you do it right, because if anything in that setup fails, you could do serious damage to your car... or worse. And no matter what, you won't be covered under any warranty.
This is a ~$60k car. Is it really worth saving $600? I could do it myself, but I'd much rather this being done when the car is being assembled rather than rely on a third party.
ETA: I realize that for some of you adding the hitch option increases the base cost of the car. But there is still debate on whether this will ultimately be the case. I'd wait until the plant starts up again and then find a competent SA to give you the final scoop.