This makes a lot of sense. I've never stewarded a humanure setup -- here you can't get organic certification if there's one on the property, so I think they may be less common as a trickle-down effect. In the case you describe the outhouse has buckets, and the buckets are emptied into the pit, instead of the outhouse being moved over a sequential series of pits?

I love love love high-nitrogen composts hot enough to break down animals quickly. Here I have no way of doing it: I'd have to exclude, not just domestic animals but also all the bears and big cats and foxes etc it would lure who might snag an animal on the way out even if they couldn't access the compost. A pit with a cover and its own electric fence might be enough of a disincentive though.