"I didn't say anything to him," Iro told the Sydney Morning Herald. "I don't know if he heard the players or me barking at the players but I didn't say anything to him."
The incident could further sour the Warriors' mood after being guilty once again of failing to convert dominance into competition points.
Three missed goals from James Maloney stands out as the pivotal factor in the loss but the Warriors certainly had chances to add to their two tries throughout the second half.
It is a familiar script for this season's side, who have blown a number of winnable games and run the risk of missing out on finals football.
After winning consecutive matches for only the second time this campaign, the Warriors edged into the top eight but their inability to make it three in a row saw them slip to ninth.
Wests Tigers defeated the lowly Penrith to move two points ahead of the the precariously-placed New Zealand side, with five other teams moving within four points.
The Warriors will next week host Newcastle, the side directly below them on the ladder, in a must-win match considering the following two opponents.
A visit to Manly, the side that beat them in last season's grand final, is followed by a home game against the fourth-ranked Cronulla, meaning the Warriors' season could soon be on the rocks.
On their run to the 2011 showpiece, the Warriors won seven of their last nine games to cement their position within the top eight and secure a second life - something which was vital after they were thumped by Brisbane at Suncorp Stadium to open the playoffs.
The manner of Friday night's defeat the same venue was far less emphatic but could prove more damaging, depending on how the fickle side rebound.
