with a hitch mounted winch it will sit a lot lower then say a detours backbone or steel front bumper. this could diminish your approach angle and you will be plowing into any remotely steep terrain before getting your front tires to it. this will limit your off road abilities on any end of the vehicle you try to hitch mount a winch. you could have it removed and only install it when necessary but then comes that time when you will need it and cant install it because something that you would have hit with it installed is in the way. another thing to think about is class III hitches are rated for 5k lbs pulling and the smallest i would put on is an 8k winch, you could potentially get very stuck and exceed the safe limit of the hitch. just think of the disaster that could happen.
on another note, detoursusa.com is currently showing the backbone unavailable. there are also no bumpers being manufactured, although you could retrofit a KJ bumper because they mount the same.