I'm not seeing any reason to think you have half a clue worth listening to at this point.
Gutless won't leave any more meat on the carcass than any other method of stripping the meat.
My dogs, who really enjoy their deer ribs, and bones, would be ever so disappointed though!
Not really seeing how carting a deer home whole is lazy either, to tell the truth. In the end, around my house, it would amount to exactly the same amount of meat in the freezer, boneless and ready for some great meals.
I have never had any problems with cooling off a deer carcass in good enough time, as long as the temperature was, as I said, not warm enough to do without the coat. I have butchered when they were still twitching, and have hung the meat for up to 10 days, depending upon my personal time availability, and the temperatures available, and have not found any substantive differences in flavor or texture. I found leaving the skin on to pretty much only prevent the outside from drying too much, otherwise it seemed to me to make no difference. Also, it was right above freezing, no flies around, and hung in a shaded building, where the temperatures were pretty stable.
It ain't beef, it ain't pork, it ain't moose either.
Lots of things work well. Opening the body cavity and getting the guts out quickly, is to me, as good as needed to start the cooling process. Other decisions are based on time available, and Temperature. For me, hauling guts home is just more weight to haul, and more weight to haul away later. The hide at least has some uses, as it can get used as a dropping point for cuts off the carcass while breaking it down, as well as a handy place to dump the trim, if you are not grinding it for the chooks.