While the manner of his goal was bizarre, if anyone was likely to score it, Cunha was that man.
The Brazilian had actually tried the corner trick in the first-half but on that occasion, United escaped.
"I was shooting, we train to shoot," the forward said afterwards. "The second one I had this luck and scored the goal."
Boss Pereira added: "We tried to put this ball swinging inside, but it's his quality. I think it's not about work, it's individual quality. He's a player in my opinion who can reach high standards in this league."
In a pretty drab opening period, this was the kind of inventiveness that stood out.
Much has been made about the players Wolves have sold and the lack of quality replacing them.
However, as long as they have Cunha, they will always have a goal threat.
"He is one of the best I've ever played with," said strike partner Jorgen Strand Larsen.
Speaking to Match of the Day, Pereira added: "He's very important. His standard is a high-level player. We need high-level players, we need him. I hope he can help us every game. He is a good boy, a good person and he is also a leader inside the team."
Critics may argue he should not have been playing as his FA misconduct charge for an incident after the final whistle of the home defeat by Ipswich on 14 December is still to be heard.
Wolves are making the most of their good fortune.
Leny Yoro had already been booked for cynical foul on the Brazilian before Fernandes followed suit with a tackle that would have greater consequences later in the game.
Noussair Mazraoui needed to be absolutely spot on with his tackle to avoid a similar fate after Cunha had advanced into the visitors half in a move that began with a superb piece of skill to control the ball by the touchline.
A disguised pass to Joao Gomes was another moment to savour from the 25-year-old and no neutral could have begrudged him the tap-in had United goalkeeper Andre Onana not got down to prevent Matt Doherty's low cross reaching him.
His reward was to come though. Not only did score, taking his tally for the season to 10, he unselfishly squared a pass to Hwang to provide the South Korean with a tap-in to seal the points in the final minute of stoppage time.