Assuming you mean on average, a ball solidy hit coming in at 100 miles per hour will go farther out than one coming in at 90 mph, yet home run distance records are not being set and a LOT of home runs just clear a fence or caught by fielders.
Way back in Babe Ruths day he was hitting balls distances that were near 500 feet and he was not a dude out pushing weights every day.
Every person has different limits, to say that some how baseball is SO different nowadaya that people are pushing too far, maybe some, but probably a lot simply do not have a strong physic or, modern medicine is doing more harm that good.
Military Special Forces are pushed to limits that make baseball look like a romper room, some are built to take it and some find out they are not.
So the -- being pushed too far -- sounds like Lions and Tigers and Bears OH MY.