The Welshman was sent off in the 80th minute of the game for picking up a second yellow card after tangling with Oguzhan Ozyakup, with Wenger angry with the referee's decision to give the player a matching order.
"We could have won it but they had chances as well. In the end we didn't lose and hopefully we will make it at home," he told ITV.
"Both yellow cards for Aaron Ramsey are unbelievable When you see the fouls they have made today it's not serious. Just not serious.
"It was a game played with a frenetic pace. We didn't lose the game and hopefully we'll finish the job at home."
This means that Ramsey will not be in action for the Emirate's outfit for the second leg of the play offs.
Meanwhile, Wenger also took time to praise Calum Chambers after the £16 million signing from Southampton turned in an assured performance on his European debut.
"I think he was once again very good and convincing in his performance," he added. "He coped with the pressure and coped with the challenges of a pitch that, overall, was not easy. I think he has done extremely well."
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