I know knots has a bunch of filtering that it does, but I don't know if RDTS perfectly aligns with that filtering.
Not at all.
I don't think what you're attempting makes sense because that can't account for people changing their transactions to accommodate it. If you do, the result is that there is no effect: the spammy stuff can change to accommodate it with only a few lines of code (as the ordinals stuff has already done) and the financial transactions it blocks like large inheritance scripts aren't common enough to be noticeable in bulk statistics.