Ah, I think I see where things might have gotten a little cross-communicated here. I thought your point about objectives was in response to someone's suggestion of one of the 6x or 8x fixed-power Schmidt & Benders, not the more generalized point about usability limits with objective sizes. Definitely agree with the point that there's a usability threshold, depending on the hunt.
Regarding discussion of LPVOs, there is one place in the hunting woods I'd definitely want a good one, and that's if there's dangerous game around at all.
Short of that though, for hunting guns, I've found them to be suboptimal. Keep in mind, I'm in Nevada, and don't deal with coastal jungle at all. But even in denser timber, I've found zero use for 1x. On 1x they're basically a red-dot that doesn't allow me the precision I want, and on the high-end, it's barely getting into the mag range I want for seeing with the precision I prefer. When hunting, with the LPVOs I do have, they're kept right around 2.3x or 2.4x magnification, as it gives me personally a really good balance of FOV, speed, and sufficient precision at speed under 300yds. But if I have time for getting into position, I'm cranking it up to max power. And the LPVOs with a higher mag range (8x and 10x especially) also tend to have crap optical performance and usability on the high end mag settings. The only time I'd have them on 1x is if I were in a defensive situation of some kind, or with vegetation so thick that a 50yd shot on a fast target is about all you're getting.
Overall, if I were in dense vegetation grizzly country, an LPVO would probably be preferred. Anything else, a low end of 2x or 3x is a pretty optimal balance for a situation too fast for getting into some sort of shooting position.