There should be a 6’-and-up division and a genetic-dead-end-short-man division.
We already had that, back in the day (sort of), with the under and over 200-lb classes. Most dudes over 200 lbs were also at least six feet tall.
How are you a "genetic-dead-end", if you're Mr. Olympia?
Counting Choopan, there are at least 4 guys who are 5'6 or shorter who have Sandows (Jackson, Dickerson, Columbu)
The weirdest thing is that 5'3" Mohammed Makkaway beat BOTH Samir Bannout and Lee Haney at the Olympia but never became Mr. Olympia himself.