I wouldn't count on that. Tsuchimikado said they were arranged according to feng shui. So, in a certain sense, it was only a matter of time. The dad kept collecting all manner of good luck items everywhere he could in order to "save" his son, and arranged them carefully. I think the special skill here is his deep connection to feng shui to be able to arrange them like that. But in a world like that, it's actually pretty natural he could have such an instinct. So, in short, he kept collecting them until a critical threshold was breached.

What comes to the flattened climax of this arc, I think it might actually suit this series, in the end. All things considered, this is a strange mix of cruel, badass powers and high goofiness.