The following is taken from the Epsom Stewards’ Report:
An enquiry was held into the start of this race and the participation of BENVENUTO CELLINI (IRE), drawn 12, ridden by Ryan Moore. The rider and the Starter were interviewed and shown recordings of the start. The Stewards considered that the colt was prevented from starting on equal terms due to its left-hind leg being caught on the running boards shortly before and as the start was effected, materially affecting its chances as the rider was instructed to go forward and race handily which consequently he was unable to do. The Stewards therefore ordered that BENVENUTO CELLINI (IRE) be declared a non-runner.
It could be inferred that if the intended tactics were for the horse to be held up then the decision would have been different. That doesn’t seem equitable to me.