Having never been to this tournament, I'm only guessing. But looking at the brackets as they are and not seeing a final posted, that they were paired up strictly based on ability. Like 144.1 is the stud group, 144.2 is the middle of the road, etc. Rather than the traditional winner of A wrestles winner of B for champ on down.
I just ran one similar to what I just explained this past weekend, and it's basically a bunch of round robin brackets where higher seeds are together in a pool together, and beginners are together and so on.
Just my thoughts on looking at it from an outsider's perspective.