Well, if you referring specifically to one wrestler, he moved up because he has grown and doesn't feel like cutting any weight for this tournament. It is homecoming weekend too so he wants to eat and drink without discretion. It is a long season from Mid October to the end of July.
But does it really matter? It isn't poker. If someone doesn't want to or wants to wrestle someone else then let them move. Who cares? I like the ability to view the wrestlers not to any advantage but to generate interest in possible matchups or to draw wrestlers into a bracket.
I like it! No, I LOVE it!