There's a differnence between a group of hooded top 4 executives sitting in a dark room with top refs and real life media bias, influence (such as what Ferguson did) and a pressure from the Premier League/FA to help out the top teams to keep the status quo. It's always been that way.
As mentioned earlier, Gary Neville nailed Dorrans and got away with it. He quickly retired after and has since said himself that he was amazed it was never given. More recently, we got absolutely battered by VAR when Allison got the late 2-1 winner to get them into the top 4.
In short, football has always favoured the bigger teams. With VAR, it's now more systematic and unfair than ever.