That's what the judges places higher these days. Someone with Zane or Nubret's physique would not even get their pro card, and therefore bodybuilders strive for the "freak" look in order to get anywhere in the sport. The judges need to be able to distinguish between physiques to place a winner, and if they went back to the old standard there would be thousands and thousands of such physiques (since the old physiques are much more easily obtainable today) and it would be impossible to for judges to differentiate and award a certain few their pro card, choose between which 20 or so will qualify for the Olympia, etc. Therefore, naturally, each competitor strives to get bigger and bigger to differentiate and place higher. If someone with Serge's physique was given their pro card over a typical winnner these-days, the majority of fans would be in uproar. There's really nothing that can be done to reverse this.