I was just hypothesizing I don't know this sensei or the particular circumstances of the incident, there could be any number of reasons why he was unable to successfully defend himself. I didn't mean anything by it.
I also did not wish to appear offended by your response, but we should not look for excuses for the incompetent. I would imagine the truth is too much harmonised practice without an approach to reality.
Co-author `Positive Aikido`