Really? Lets go weight by weight:
125: Vespa took his shot early, but it was over shortly afte that, so I wouldn't put any boredom on this match.
133: Teske's fault here.
141: Woods didn't do a whole lot the last half of the match, but it was still mroe than Bartlett did, and Woods had the lead, plus Woods had all the action in the first half.
149: Similar to Woods, Murin was the one attacking in the end with the lead, so I would put this on Van Ness
157: Probably the most even match in terms of action, scrambles (generated off Haines shots) and Siebrecht looking for something big. I didn't find this match boring, so nothing for me here.
165: Kennedy doing almost all the work here, other than one nice duck attempt by Facundo.
174: Neither guy did much, but Nelson did less, I would go 60-40 for Nelson causing the boringness here; Starocci could have tried more.
184: Not boring so much as one sided. Rhodes was giving an effort, but obviously no shot.
197: Kill me now, awful to watch. 50/50.
HWT: Cass couldn't do much in the first half, Kerk didn't do anything in the third. The ride was....well, I've said I'm going to stop bitching about it, ti's just not going to get called.
So I don't agree with your 75-25 number, but to each their own.