Alistair Johnston has certainly been vocal about VAR today after witnessing it in action last weekend at Hearts. The Celtic defender was critical of the decision to send off Hyunjun Yang after the South Korean was given his marching orders for a dubious red card. The fallout from the controversy has now spilled over to Brendan Rodgers after the Celtic gaffer was cited by the SFA for his comments on VAR official, John Beaton. And now, the Canadian international is in no doubt about what he wants to see happen with the refereeing technology after a week of the officiating aide dominating the hea…