Wilder defended his WBC heavyweight title against Fury after the judges came to a controversial split decision draw.
Fury outboxed The Bronze Bomber in the early and middle rounds but suffered a peculiar knockdown in the ninth, which he claimed was a back-of-the-head shot.
Nevertheless, the lineal champion recouped and dominated rounds 10 and 11, but was flattened with a vicious right-left combination in the final round.
Cutting the splayed figure of an unconscious fighter, Fury somehow beat the count, and has been likened to WWE star The Undertaker for his heroics.
The draw has left clamour for both fighters to go at it again, but Hearn, who promotes WBA, IBF and WBO champion Anthony Joshua, does not think the fight was as “great” as people are making out.
“I’ll say something a little bit controversial, because it wouldn’t be an interview without it,” Hearn told iFL TV.
“It weren’t a great fight.
“If you watch it back, some rounds – look at the punch stats – there were very, very few punches thrown.
“But what it was, was dramatic. With the knockdown in the ninth, which was a weird one, and the moment in the 12th was unbelievable.”
Some boxing pundits, such as former welterweight world champion Paulie Malignaggi, have described the result as a “robbery”, but Hearn disagrees.
“I had Fury winning by two rounds, so is a draw a robbery? No, not really,” the promoter added.
“But Fury won the fight. But if you’re scoring it two rounds to someone… One round the other way and it’s a draw. But in my opinion Fury won the fight.
“I’m holding my hands up – Fury proved me wrong. Again.
“I didn’t think he’d beat Klitschko, he did, I didn’t think he’d beat Wilder, he should’ve.
“So I give him the respect, and getting up from the 12th was great.”