Let me say first of all that I'm a Newcastle fan so bear that in mind because my natural bias may be causing me a problem here.
What I want to know is how referees and VAR officials interpret "clear and obvious". There was an incident in the Villa v Newcastle match yesterday where Villa were awarded a penalty for handball. The incident was not seen by the referee or either of his assistants. It was not seen by any of the Villa players, none of whom appealed and all of whom simply carried on playing. David Coote was then informed by Jarred Gillett that he should look at the monitor on the side of the pitch. He decided that the defender (Lascelles) had his arm in an unnatural position when the ball hit it from about 4 feet away. Lascelles had actually put his foot up to stop the header. I have tried this morning to kick my foot to shoulder height whilst keeping my arms by my side and it is actually impossible!!
So can someone who is a referee explain to me why Gillett got involved when there was nothing clear and obvious about the incident and no one on the pitch thought there was anything wrong with what Lascelles had done - including Mings who headed the ball against his arm.