I think we have a couple thought trains going on here. I don't care what the reported percentage lost is, as long as MY loss rate is not very high.
If MY loss rate grows unacceptably, well, I may very well change my ways, but first I would change tactics to attempt to change that rate.
I cannot control what other folks do. You see this all the time. A person bumps up to a compound bow (saw this first hand in the 80's) because they are way more accurate, "they owe it to the deer" (and so they can shoot a deer farther away and not let "their" buck get away). They practice and are comparatively awesome at 30 yards, then take shots at 40+ ( actually unknown ranges, not paced or measured off) and miss or wound.
Same with a gun. On the range ( from the bench) they destroy the target at 100 and 200, but then they go and shoot at deer running full tilt thru the swamp. And of course it is followed by the statement that they shoot better at running deer than they do at stationary deer. Right.
I witnessed a muzzleloader dude shoot (far) at several deer over the course of a morning hunt. 6" of snow on the ground ( great easy tracking). When confronted as to why he was still shooting at deer he actually said he must have missed them all, none went down. I trailed one small buck of his and put the final kill shot into him, using up my tag.
Again... I can't control them, but I can control me. I did, however, attempt to enlighten that obviously clueless muzzle dude about how his weapon works and how to follow up on every shot by actually getting off his butt and looking. I didn't spend time getting to know him, but I often wondered how he got into MZ shooting in the first place ?
I am guessing, and believe myself correct, that, since the state mandated this area be muzzleloader only, due to it being a portion of a state park ( safety), and since he wanted in on hunting a big deer, he by necessity had to buy a muzzleloader and go hunt. No special training, very little practice. Same happens all over the place with other weapons.