Can't see it but would be refreshing for the sport. These long, successive winning streaks take the intrigue out and make things regimental and more boring.
The criteria for winning a bodybuilding contest, especially a Mr. O, is ridiculously stupid.
Its often said that you just cant beat the winner, you have to totally "dethrone" him (i.e., you just cant win by a small margin).
So, even if X bodybuilder is better than Heath by a small margin, he likely won't win.
In no other sport, as most sports are objective, do you have to win by a wide margin. You just have to win by one point.