Now that I have learned stats (and pole jumping) from @Than, I feel I can comment here...LOL.
I should disclose that I was never a fan the original tread about the "unusual scores" in Spain. I had a similar "bad taste" around the same time, about another tread on "unusual" high scores at an amateur tournament site in NJ. My discomfort with those was the innuendo that some type of "fraud" was responsible for the high scores. I have no idea if any "fraud" was present (narrow course, slow boat, bad boat path, lenient judges, whatever), so personally, I would not bring it up without some proof. Conversely, I agree with @Horton that "questions should be asked" and answered.
My comment on this analyses is not whether it is perfect or flawed. Looks like a good compilation of available data. (as a less nerdy R&D engineer now that I am old, I still love "data"). My view is that this does not increase the potential justification to ask whatever questions might be legit about the Spain tournament. It was a one tournament situation. I suspect that if no answers were given to date, this will not provide any further impetus. @Horton says "it appears that the Seseña event was by the book this year". Does "by the book" mean that no unexpected 41's were run this year? Or do we have some new relevant information about how it was run last year?
What if one looked at the graph and asked about the lack of 41's in AUS and AUT? Wide course, fast boat, "too good" boat path, over zealous judges, whatever).
Bottom line, great information compiled and presented but, in my opinion, not changing the need (or lack thereof) for questions about Spain 2018.