I hope these were some really serious abuses. I can't imagine having gone through boot camp (U.S. Army) myself without having been "abused." I wouldn't have learned the things I needed to learn, which first and foremost was: when your superior tells you to move in combat, you move, without thinking about it first. Or, probably, you die.
The entire purpose of boot camp is to tear down certain aspects of a recruit's personality and build them back up to make him a good soldier. Sometimes, that requires drill sergeants to do what those in the civilian world might call "mean," or, in the case of the linked story, "abusive."
It would be a shame if the Marines were to relax the harshness of their legendary training. Because ultimately, a Marine then wouldn't be a Marine.