A document you really need to see is this one, beginning with Pg 13:
https://ncaaorg.s3.amazonaws.com/championships/sports/wrestling/d1/men/2024-25D1MWR_PreChampsManual.pdf
In the PreChampionships Manual, the Subjective Criteria section (pg 13) has this sentence: "The committee may also consider the following subjective measures to supplement established selection and seeding criteria:" So yes, it's not just seeding.
I see the split in the Quality Wins criterion, and I agree they can be split. But they don't show what's needed for the split. Regardless, if the two wrestlers tie then they split the points, otherwise the guy who gets more QW points get more comparison points.
One table that's definitely worth looking at is on Pg. 6 of the Slideshow. This is the only place I've ever seen the actual RPI calculation results shown. Normally all we see are the rankings. It's from the 125 class in, I think, 2016. The RPI column shows the results, which range from about 0.55 to 0.699, rounded to five decimals. The result is 0.55167 for the 27th rank, 0.55162 for the 28th rank. That's a difference of 0.00005; if an error is made anywhere in the data entry, a match that should have been included wasn't (like if a default in a November tournament is instead entered as a forfeit), the change in an RPI will be as much as 0.005. I ran some trial hand calculations a few years ago and found I could easily shift the guy ranked 8th to 4th, or vice versa. It probably doesn't matter much for the top 10; but how about for the guy ranked 29th, the guy who didn't make the field?