Throwing is a very specific skill. A complex interaction between a number of muscles and muscle groups.
Even 40 years ago it was noted that the sports Americans play give them a large advantage in grenade use over most other nations. For most it was something already natural.
It’s much more than pure strength, and something most kids don’t do anymore.
Back in the Bronze Age I was a pretty good pitcher.
Maybe that had something to do with this article causing a WTH?!
Gotta wonder how today’s average recruit would measure up against the average (likely)undernourished farm boy gettin’ off the bus in 1941.