It's so interesting to see that. I've shot mechanicals for 20+ years and have had pass throughs but once. Grim Reapers and 3 blade Rage mechanicals at first, then 2" cut Rage's until 10 or 12 years ago when a very experienced pro-shop owner convinced me to shoot the 1.5" Rage instead.
I've followed the coc, foc, single bevel, high mass talk since before Ranch Fairy and have amassed stuff to make the switch (Alaska Bowhunting field point kit, Og German Kinetic broadheads, etc). I'm not against improving something despite "if it ain't broke don't fix".
But I never could make the time to invest into changing my bow's tune. I had it dialed in good for my arrows with mechanicals. Two bucks I shot penetrated shoulder bones and passed through. Now I'm not comparing that to crushed femurs or whatever the "adult" arrows are accomplishing, just that it's a bit unnerving to see the shots in that video just stick mid-deer. I'm shooting Legacy and Switchback XT bows with a 30" effective draw at 65ish lbs, so I'm not exactly applying brute force.