Science takes a backseat to personal experience and actual observation, or haven't you been watching the DNR antics lately.
What you learn about archery is valid. The problem I have with compounds as I get older is not that I can't draw them, it's that I can't practice myself into efficiency due to other physical problems that arise as I get into my practice sessions.
When I started bow hunting 45 years ago there weren't many of us. It was my generation that advocated for the "new" compounds to be legal hunting tools. Then since a sighted compound was easier to learn on than an instinctively shot recurve, there became lots of bow hunters. Half of them weren't even in the woods in 1960 because "it was too hard".
Now, as my generation ages, the new mechanical stick hunters refuse to advocate for us older guys to use crossbows. Most of them wouldn't even hunt if they had to use recurves we started on.