The whole pigmol/var situation should be investigated by an independent body, and Riley should be told to explain why his operatives never have to account for any of their decisions - no matter how bizarre and illogical.
It's been this way for as long as I can remember: most referees in the Prem are pedantic, pompous and far too fond of the limelight to do the job correctly. They do not see the same game as us, the paying customers, they see only what is best for them. When Salah throws himself to the ground and writhes around in play-acting agony, hoping for yet another penalty, the referee is going to quickly ask himself 'Should I book him and risk upsetting the powers-that-be behind one of the biggest clubs in world football? And face the prospect of almost certainly never being allowed to officiate on this big, glamorous stage again? My friends and family not seeing me on MoTD in full colour and 4k HD?
Lose my self-initiated celebrity status? Or just pretend I didn't see it...? Yeah, right. Tough one!
I am of the view that most of the referees and officials in our national sport do not have an ounce of integrity between them. If they did they would surely waive the disclosure contract that Riley appears to force them to sign before they can join hm and his 'closed-shop cronies' at the FA.