I'm not sure if I don't fully understand what you are saying, but in the first paragraph you say you don't believe in the conspiracy that the refs are having the top clubs and it boils down to incompetence. The second paragraph you start off by saying they give the top teams things they don't give others, not because of conspiracy but that it is easier for them to act that way.I do not believe in any conspiracy theories, I believe there is a rational explanation for everything that happens. There is no big Sky conspiracy involving referees to ensure the top six get given the benefit of the doubt or even worse against the rest of the league. It is simply that these referees are just very poor at their jobs. The foul on Richy today wasn't committed by a top six team, it wasn't given because the referee is just incompetent.
They do give the top teams things they don't give others and they are reluctant to punish them, not because of a conspiracy but because it is easier for them to act in that way. Think of the scrutiny they would come under if they started administering the rules properly, think of the backlash from the pundits who generally come from those top six clubs. There is no refereeing conspiracy but there is refereeing incompetence and cowardice.