I have read the study, and I was aware of that caveat. However, you're misunderstanding the point - it was meant to address issues of legal culpability (e.g. fault vs. cause). Since the data were based on actual police reports, the researchers are basically disclaiming themselves from any claims of legal responsibility.
All you really need to do is look at "Table 3.2" in "Chapter 3: Key Findings" and sum the numbers for incidents caused by cyclists vs. those caused by motorists. The results are quite clear.
On the other hand, why should I be surprised that a cyclist doesn't bother to read the study they referenced, or that they automatically assume they're right regardless of what's actually in front of them? Such behavior matches perfectly with my observed actions of cyclists on the road!
I have nothing against motorists, but you certainly seem to have a bias against cyclists.
I could respond in kind, and assert that it certainly seems like it was you who didn't bother to actually look at the numbers or make a good faith effort to understand what was being said; and simply cherry picked a single comment out of context which appeared on first glance to support your preconceptions. I could also go on to make similar unwarranted assumptions about your behaviour, and claim that they match my observed actions of motorists on the road as well (they do in fact)
But you know what? It's not constructive, my own observations about motorists are likely biased in many ways (e.g. availability heuristic etc...). Making unwarranted assumptions about others based on biased preconceptions serves no one any good. So, I'll give you the benefit of the doubt and assume that you did read the study and the numbers and simply misunderstood them.
In the future though, I would caution you to read things a bit more carefully before making unwarranted assumptions about another's behaviour or comprehension based solely on your own perceptions and preconceptions. It's always better to take a second look, and give them the benefit of the doubt.