The Jets boss believed that the 80th minute equalizer, scored by Roar substitute Jean Carlos Solorzano, should not have been allowed as the first pass from Mitch Nichols to Ivan Franjic before the goal appeared to be off-side.
But soon after the match, Culina had calmed down although he did still feel the decision by referee Peter Green and his team of officials was wrong.
"I did see it from an angle and it did look offside," Culina said. "I have been told it may have been onside.
"You have to accept it.
"I said to them after the game, if it was a correct decision I take my hat off to them but if it wasn't I hope you learn from it as well.
"Whether it is luck or bad luck we seem to be on the wrong side of decisions that are costing us dearly.
"I probably should have waited until after the game to make a judgment on it but I'm disappointed for the players, because I think they deserved the three points tonight."
The Jets dominated long periods of the Week 14 match against the league leaders but were desperately unlucky not to take maximum points in what would have given them wins against the top two teams in the space of four days following the weekend's victory over Adelaide United.