For what it is worth, West Point replaced the 4th class system (which relied on "hazing") with the 4 class system (cadet leader development system) years ago. This is not new.
USMA Admissions: FAQs: About Cadet Life
Q: What is the Cadet Leader Development System like?
The Cadet Leader Development System is a demanding but professional four-year program to develop leaders of character. In order to be a successful leader, you first must learn to follow. During your first year at West Point you do just that.
The Leader Development Program prescribes the relationship between you as a plebe and upper class cadets. As a plebe, you must be able to recall an accumulation of information with precision. You may receive constructive criticism at times during Cadet Basic Training, but upperclass cadets will not treat you in a demeaning manner. You will also carry out specific tasks in your company during your plebe year.
During each succeeding year at West Point, you receive progressive leadership responsibilities, using those cadet experiences to hone your leadership skills. You learn how to be a team leader during the second year at West Point, guiding two or three cadets in your company.
In your third year, leadership responsibilities are expanded, helping you learn more about senior noncommissioned officer duties in the U.S. Army. This prepares you for cadet officer responsibility during your senior year. You learn what it takes to lead larger groups. It also prepares you for platoon leadership responsibilities as a lieutenant in the U.S. Army.