"I thought 'why doesn't Chris [just] get put on report'?
"I didn't think Chris needed to go to the bin but it is what it is. I don't think anyone has an explanation for some of the stuff nowadays.
"We're just fortunate we got the result."
The Warriors are confident Satae will have no case to answer with the NRL match review committee, having seen worse incidents go unpunished this season.
When asked if he felt Satae had anything to worry about, Kearney referenced the fact that Sydney Roosters firebrand Dylan Napa managed to escape suspension after a dangerous tackle left Brisbane forward Korbin Sims sidelined for six weeks.
"No, I don't think so. Not if Dylan Napa has nothing to answer for when he led with his head and broke someone's jaw," he said.
Broncos coach Wayne Bennett suggested McCullough's uncharacteristic outburst came after he played just 33 minutes for the Maroons in their dead rubber victory over New South Wales last week.
"He's got a wonderful record with the way he plays the game," said Bennett.
"That's the frustration built up from last Wednesday night and still in the body. But at the end of the day he did get cleaned up, (a forearm) to his throat."
Kearney, who previously spent three years at Brisbane as an assistant to Bennett, remains close friends with McCullough, but joked about his attempts at sparring the much larger Satae.
"I don't know if you can call them punches," said Kearney.
"I just walked past him, I said 'Chris has got a big head, I don't know how you missed it but you did'."