Those are some crazy numbers.
It also reminds me of some stuff I've been thinking about a lot the last couple of years. Pretty sure there's also something else going on with success rates, beyond just weapon tech. I think guys are just becoming better hunters, on average. At least with Western big game. It might sound crazy at first, when thinking about Grandpa going out every year, always getting a buck, etc, but think about how serious you and your circles are, compared to how past generations prepped pre-season. Normal back then for most guys was like getting ready for a long camping trip, with maybe an overnight pre-season scouting run somewhere.
Nobody was going out multiple times, totalling a couple of weeks, to scout. And that's pretty common now.
With tags getting harder to land, and many years apart in most places out here, I think a lot of guys are taking their hunt a lot more seriously than we would have 40 years ago. Guys are researching how-to a lot harder, they're scouting a lot more pre-season, and they've got access to vast catalogues of world-class buck hunters hunters they can watch or listen to on youtube, podcasts, etc, by the tens of hours each, who would have been a once-in-a-lifetime conversation to stumble into back in the 1980s. I'd argue that on average, each guy going out into the field per tag is probably more serious, with more info between his ears, than was the case even 20 years ago.
I think this is also why guys are putting a lot more into their gear - they spend 3-5 years waiting for the next tag, and put money into guns, optics, camo, SxS's, that they just probably wouldn't if they were getting drawn every year. But with opportunity becoming more rare, they want to make the absolute most, and best, of the hunt.
I don't see that as much with Blacktail or Whitetail guys. Might be wrong, admittedly. But I just don't perceive that level of obsessive preparation, gear hoarding, and bonkers exploits into the middle of nowhere backcountry on a BOAL pursuit.