Dexter won the title one more time than most people thought he would.
EXACTLY!!! And, if Jay comes in waterlogged again, there's no reason to think that Dexter can't grab another Sandow.
so what he looked good 10 years ago. if he ever made any real improvements he would be multi time champ and he is an ass-hole and that goes along way towards winning or rather losing the Olympia
What do mean "real improvements"? He made improvements, gradually increasing his size while keeping his shape and cuts.
The end result: 3 ASC titles and one Mr. Olympia. You don't get much more "improvements" than that. You have to win it ONCE, before you can win it twice.