Replays appeared to show that the foul began outside the box and that there was no contact once Wilson had entered it, but despite consulting the pitch side VAR monitor referee Graham Scott stuck by his original decision and also brandished a red card.
Fulham held on to pick up an important point – one which lifts them out of the relegation zone – but Parker was left to rue the decision.
“From what I have just seen, the contact was made outside of the box and then goes into the box and dives,” Parker told Sky Sports on Saturday.
“I don’t know whether [the referee] is looking at the same angles I am. I just don’t understand. The game has changed drastically and not for the better. It’s a bit of a mess.
“We’ve got every gimmick, every slo-mo and yet we’re still not coming up with the right decision. Sitting here, with everything in place and the way the game’s going, and still not coming to the right decisions, it’s criminal for me.”