All of the talk before the fight was about how good Ortiz was and how many rounds it would take him to KO Scott. I doubt many people would've heard of him before the fight, outside of the normal punters that regularly watch boxing, so Hearn would've wanted a spectacular KO to increase his earning potential for future fights.
What we got was one of the most boring fights of the year between a slow, one dimensional slugger and a long distance runner.
I very much doubt that would've impressed Hearn or the paying public or would've inspired them to want to pay to watch another one of his fights in a hurry.