Now we enter the proving phase for the season's four-year-olds and Mizani's last-to-first swamping of Class One rivals in Sunday's final race will have come as a welcome sign for all concerned.
As we recorded here prior to the 2013 Derby, the suggestion that it was a weaker Derby than usual, or ever, in terms of prior performances, still doesn't preclude it being a worthwhile classic in hindsight.
Mizani can't exactly frank the Derby form per se, since he didn't run, but he was front and centre among the classic-age generation when morning dawned on Derby day, looking every inch a real contender if he was presented sound. Of course, that didn't happen and he was withdrawn.
His win on Sunday was visually exciting, although a deeper examination of what took place paled the prima facie vivid colours of his victory: a modest overall time for the grade, under the conditions, was paired with an undistinguished finishing section that flattered his sprint. In other words, while his performance was good, it was made to look better by the underperformance of his rivals.
Still, as an early guide to whether there will be more to come from the Derby generation, as promised, it was a decent enough show. Derby runner-up Endowing gets his chance to back up the form tonight but the next major evidence will come from Akeed Mofeed, when he takes on the QE II Cup. Until Vengeance Of Rain came along, that was a double the Derby winner had never been able to complete and only Ambitious Dragon has done so since.