Arsenal chief executive Ivan Gazidis has admitted the club are waiting to discover what disciplinary action striker Eduardo will face.
The Croatia international tumbled under the challenge of Celtic goalkeeper Artur Boruc in the second leg of their qualifying tie at Emirates Stadium before stepping up to dispatch the penalty as the Gunners progressed 5-1 on aggregate.
But replays showed that there was no contact made as the forward threw himself to the floor, much to the immediate fury of Boruc and his team-mates.
Uefa president Michel Platini has confirmed that Europe's governing body will be looking into the incident, and they have the option of imposing a two-match ban.
Gazidis accepts that if the referee had seen the incident from an alternative angle he may have reached a different verdict, and is now awaiting further developments.
When asked if he expected retrospective action to be taken, he told Sky Sports News: "I think that's a question for Uefa. I imagine there could have been a yellow card given if the referee had viewed it as a dive.
"Sometimes the video can be a little bit misleading. I think it's important that the referee is given the benefit of the doubt and that we don't turn against the referee in these situations, but support him.
"I'm sure Uefa will look at it and if Eduardo should have been awarded a yellow card they will take whatever action they think is appropriate."
Too many cooks
Platini is introducing an experiment in this season's Europa League which will see two additional officials stationed at either end of the field to assist with key judgements in the penalty area.
But while Gazidis is a fan of using video replays for certain aspects of the game, he has warned against bringing in too many pairs of eyes as he feels that could lead to greater confusion, rather than the clarity which is intended.
He added: "We've always been in favour of video technology for goalline decisions, we think that is a very factual decision.
"Once you start bringing different referees in and different judgements it can get very confusing as to who is in charge and to how they are calling the game.
"It's important there is one referee exercising his judgement because decisions all have context and background and how a game is officiated and how a referee as an individual manages the players through the game is an important part of officiating.
"If you introduce too many cooks into the kitchen you can create real issues for yourself, but on factual decisions, such as goalline technology, I think that makes sense."