The winners of course were the team that had brought the most of the 'herb roots', he had decided to call those ugly things by this name, as it made it easier, and more acceptable to him.
These guys had brought around 5 more than the other teams, and their skills were among the best, and also their teamwork was among the best.
Considering these facts, Tianlong Yun's decision would create a disparity between the disciples, but that was exactly his purpose, he wanted the stronger to get stronger, and the weak to get mowed down.
He was an emperor needing an army, and not some lone man looking for relatives and connections, so of course, he would prioritize the strong.
On the other hand, this tactic was also stimulation for the weaker guys, because it would give them more reason to fight and come on top next time, otherwise, they weren't fit to be part of his army.