Comeback kings Queensland had so often haunted NSW at the death and with only 12 men on the field the door was open for the Maroons to steal a win from under NSW's nose.
But the set following Roberts' departure saw Queensland halfback Ben Hunt kick on the third tackle and send the ball dead. It was the wrong play at the wrong time, and everyone knew it.
"Are you serious? Third tackle …" Channel 9 commentator Paul Vautin said.
"That kick from Ben Hunt at the other end of the field that put the ball dead on the third tackle could be the biggest play of the game," Peter Sterling added.
After full-time Thurston took aim at Queensland's playmakers for failing to make the most of the numerical advantage.
"I'm a little bit dumbfounded by the way the Queenslanders played with 12 men on the field," Thurston told Channel 9. "A centre going off for 10 minutes — I don't think they targeted that edge much.
"The first set that they had Ben Hunt kicks it dead (for a) 20m restart. That's a brain explosion on the third tackle."
Thurston also took aim at Will Chambers for giving away a penalty in that period, saying the final 10 minutes was soured by "dumb footy" from the Maroons as he criticised the spine.
"It's a massive learning curve for the halves and the hooker," Thurston said.
"I don't think that we targeted that edge enough tonight. Like I said, it's a massive learning curve for the boys."
Thurston wasn't the only member of the Maroons fraternity to criticise the side's game management when Roberts went off the field. Billy Slater said Queensland "didn't play real smart in that 10-minute period" and coach Coach Kevin Walters also lamented his troops' inability to seize the opportunity that was presented to them.
"We played a lot smarter, probably for 70 minutes of the game," Walters told Channel 9. "I am thinking (we needed to) attack where James Roberts should have been.
"We did a couple of times and didn't come up with anything too much.
"But as you know Origin is about persistence and staying at what you know is going to work and we seemed to go away from that in that period.
"That's probably what cost us in the end rather than anything that happened in the game."
Hunt in particular came in for some harsh treatment on social media.