I don't think its wired to critique someone for having a widely different interpretation of what happened than multiple others that were directly involved and then taking this very peculiar subjective interpretation to make wide sweeping (and IMHO wrong) conclusions about what we should learn from it.
My impression is that Bevin started out with a preconsived notion and then kinda made up a retrospective narrative of these protests to fit to that.
Many of his conclusions as a result are so much besides the point that they are not even wrong.