An independent panel consisting of three people were "unanimous" in their opinion that Michael Oliver made an obvious error in sending off Arsenal defender Myles Lewis-Skelly at Wolves.
Lewis-Skelly was dismissed in the first half of Arsenal's 1-0 win at Molineux last weekend, with VAR agreeing with the call - but his three-game suspension was rescinded on Tuesday after the Gunners successfully appealed the decision.
The panel - who reviewed the case after Arsenal's appeal was submitted - felt 'foul play' was a more suitable category rather than 'serious foul play' - which was the reason why Oliver sent the 18-year-old off.
In the published written reasons for the successful appeal, the panel said Lewis-Skelly "had stepped across his opponent and tripped him up, possibly deliberately, but in doing so he had obviously not endangered the safety of his opponent or used excessive force or brutality, nor had he lunged in at his opponent".
Furthermore, the written reasons revealed Arsenal gave evidence to support their appeal, which included slow motion and real-time video footage of the tackle from numerous angles.
The club also showed a challenge made by Wolves midfielder Joao Gomes in the same match, for which he was given a second booking - so only a yellow card, not a red.
In addition, Arsenal submitted footage of red cards for Bruno Fernandes and Alexis MacAllister over the last two seasons that were successfully overturned after appeal, following 'wrongful dismissal' claims made by Manchester United and Liverpool.
Fernandes' red card against Tottenham earlier this season was overturned for a similar-looking challenge to Lewis-Skelly's - while Mac Allister was dismissed against Bournemouth last season but had his suspension revoked after Liverpool appealed.
Arsenal's successful appeal means Lewis-Skelly is available for the Gunners' next three domestic games - Sunday's home game with Manchester City and Tuesday's Carabao Cup semi-final second leg at Newcastle - both live on Sky Sports - plus a trip to Leicester on February 15.
The reaction to Oliver's decision became so severe on social media that the PGMOL issued a rare public statement on Sunday calling out the online abuse which had already prompted a police investigation.
"We are appalled by the threats and abuse directed at Michael Oliver following the Wolverhampton Wanderers vs Arsenal fixture," they wrote.
"No official should be subject to any form of abuse, let alone the abhorrent attacks aimed at Michael and his family over the past 24 hours.
"The police are aware, and a number of investigations have commenced. We are supporting Michael, and all those affected, and are determined to tackle this unacceptable behaviour.
"Sadly, this is not the first time a match official has been forced to deal with threats in recent times. We will continue to support all investigations."
Arsenal manager Mikel Arteta said: "Every time I talk about this topic, regardless of whether it's about a player, a coach or a referee it doesn't matter. We have to really work harder to try to eradicate that part of the game that brings nothing but bad stuff, bad taste and it makes people's lives more difficult. Let's get it out, let's kick it out.
"For everyone in football. You should not be permitted [to do that]. We don't want it, we don't need it and it certainly damages our sport. Let's get it out."
Separately from the successful appeal, Sky Sports News understands Arsenal will continue to support the PGMOL and Oliver over the abuse he has received.
In confirming their investigation, the UK Football Policing Unit said in a statement: "Enquiries are in the early stages and officers are working closely with social media providers, including Facebook and X, to identify those responsible for the messages."
