hibernation
WKR
Maybe for a huge fall, but what about the little impacts that just happen in bad terrain on a lot of western hunts? You slip on a steep slope, you and your rifle fall with enough force to go "ow" and rub your shoulder. Are you really stopping a hunt, hiking out, and checking zero after that? If that happens while you're closing distance on an animal, are you really just walking away?If your rifle is "knocked over", falls, etc and you don't re-check zero before firing at a game animal then you're (not you specifically) an inexperience clown, no matter what brand of scope you're using.
If my rifle falls off the back of a truck onto a gravel road, yeah, for sure I'm checking it. But I don't think it's crazy to value zero retention that you can count on for the regular bumps that can happen in mountain hunts.