The reason I do not (EVER) cut to or through the pelvis bone, nor the meat between the cavity and the arsehole is that as soon as this is done there is another VERY large meat surface laid bare to contamination from dirt and crap. And that is some of the best meat, too. So I leave the hide over it and the meat uncut until the beast is hanging.
Yes of course I cut out the arsehole itself, this is practically the first thing I do, and yes I pull it back into the cavity and then out. Last thing out is the bladder.
I am talking about white-tail deer here, where the animal goes out in one piece, and in my case pretty always by man-power. I have only ever shot one moose, and that fellow got cut and quartered by my veterinarian buddy that was with me. Kind of neat to watch a pro at work.......... 8)
On the windpipe/throat, yes I agree that it can go off quickly, and especially in warmer temperatures. But in many hundreds of deer that I have participated in killing/cleaning/butchering, only a small percentage had the windpipe/throat removed at the kill site. Mostly we take them out after the deer is hanging. I do not recall ever having bad meat, or hearing of other fellow hunters having bad meat, from leaving the windpipe intact for an extra few hours. I have however seen dirt, leaves, and gravel etc right into the meat that was exposed by a hunter making a L O N G cut on his deer, arsehole to jaw kind of thing, and then dragging it from the kill site to wherever it was hung.
I think that most hunters do things for a reason. In my own case, I am mostly on foot and mostly in the back country when I shoot a deer. If I had an ATV, or if I was going to be home in an hour after I shot the deer, I might do things differently. If I owned a walk-in cooler for hanging game, I would do things differently, and especially regarding skinning. I don't think there is any right or wrong answer to how things are done, except maybe leaving the guts in an animal longer than necessary, or similar bizarre behaviour, that any person with half a brain and an arsehole could figure out "MIGHT" taint the meat..........
One of the great things about this forum is that people can think about other hunters' experiences, and learn from them, take the lessons that are applicable and ignore the ones that aren't. For example, I will certainly take vinegar in with me to the hunt camp this year. We are hunting a new area (for all but one of us) and when I did the recce I saw that there is no clean water within MILES of the camp. So unless we are going to sacrifice our drinking water to clean a possible gut-shot deer, we need an alternative and it looks like a vinegar/water solution is a good one.
"There are none so blind as those that will not see."
Doug