The Atletico Madrid star wrote his name into the history books after he went down under a tackle from Josh Risdon in the penalty box in the second half of the Group C fixture.
Antoine Griezmann scored from the penalty spot to put France one up, and speaking to the media after the match, van Marwijk couldn't hide his disappointment of Cunha's handling of the game. Paul Pogba poked toward goal, the ball deflected off the boot of Australia's Aziz Behich and looped into the crossbar before falling centimetres over the line. "I am not going to complain about VAR - it went in our favour", the France manager said. "It helped correct a mistake".
France launch their latest World Cup campaign against Australia on Saturday.
After reviewing the footage from different angles, the ref reversed his initial decision and awarded France the penalty.
"My understanding is that obviously if its a clear-cut wrong decision then it can get overturned but I felt like I definitely got the ball so therefore I don't think it was a clear-cut wrong decision", Risdon said. "The referee did not bow his whistle, so I moved on with that".
The result makes it hard for Australia to get out of the group stage, with matches to come against Denmark on Thursday and Peru the following Tuesday.
"It was not easy, but winning the first match is very important", Deschamps told L'Equipe.
Attacker Robbie Kruse said the bitter loss to France would be digested before turning attention to their next games.
France's early verve was sorely lacking for the remainder of the half, with Australia able to keep their more illustrious opponents comfortably at arm's length before the interval.
Once again, France looked like they didn't play enough as a team and Lloris agreed. They also have a skilful and inspired playmaker in Aaron Mooy.
The game finally burst into life 10 minutes into the second period with Griezmann's historic goal.
Supporters were excited to see their favorites perform as intended, and will be anticipating a grander show for the duration of the World Cup that was left.
"He played in a European final, UEFA Cup final, and he's won trophies".