First of all, we all know it's very easy to lie with statistics. Even if the statistics did seem damning (which is debatable when I read it), that could be from manipulation.

Fwiw I recall seeing someone make the same analysis about high numbers of President-only ballots, only they reached a much less conspiratorial conclusion to explain it. I forget what the explanation was, but if multiple different people are analysing the same data in the same way, especially if their explanation is different, it lends credence to the idea that the analysis itself is fair.