It is not a secret that 3yo are in a disadvantage when they compete against open companies. This fundamental doctrine is also reflected very well in the conditions of the races who always favor the younger horses who carry less weight than their rivals.
What is important though is that the crowd tends to overestimate the chances of this type of runners creating some overlays among them. The trick is to use other factors in order to spot those who are going to win and eliminate the losers!