Well, I guess we can reasonably disagree on what makes sense. Lots of rangers will give you conflicting interpretations, that can't all be right. I am just going by what the regs and the forest orders actually say, and I wish more rangers would too. I am sure every ranger in the Whitney district will tell you that you are required to carry a wagbag, despite the fact that there is no reg and no forest order even requiring you to pack out human waste, much less to use a wag bag to do it. And as for making sense, is a day hiker who can spent up to 24 hours in the zone less likely than a through hiker who blasts through it in 3 hours to get delayed overnight?