I personally think Season one is harder because the rooms are easier.
In certain rooms, the objective is obvious: Assemble the statue and the doors open.
In other rooms, the objective is simpler, but more complicated: Open the treasure chest, or hit the actuator of the door you want to open.
If they hit the wrong actuator, or if they miss one, they look around like idiots looking for the right door. But when something complicated is done, all the doors that can open will open, signifying where to go.
Ergo, harder rooms make for an easier temple.