Not even sure what you are trying to argue here.
Perhaps just to argue.
The UFC did not have Lesner fight a bunch of legit fights.
He was a marketing ploy, plain and simple.
He won 4 UFC fights. Those included the last ever fight by Heath Herring who was semi-retired and making B or C level movies. A Light Heavyweight wrestler in Couture who had come off a year or more out of fighting altogether, a split with Mir who was 230 pounds the first fight and a brutal beatdown by Carwin where he won when the ref didn't stop the fight and Carwin gave himself a coronary punching Lesner in the head 50 times.
Lesner was never a good heavyweight. He was just really big. He didn't even have rudimentary stand up. He came in at close to 300 pounds fighting guys 50 to 60 pounds lighter than him. The UFC chose those match ups to allow him to win and sell PPV buys. When he was tested by guys his own size, Carwin and Overeem, he was truly embarrassed. He would have never been competitive with any of the 3 now. Werdum, Dos Santos or Cain. He couldn't beat Big Foot or Browne. He didn't even last a round with a gate keeper like Overeem.
Lesner is a somewhat embarrassing footnote in the history of the UFC but one that made them a whole lot of money.