i don't see it that way at all. the plugged touch hole was NOT a mistake, it's just something that happens. it could have been found out by blowing down the barrel and observing the touch hole as well as noting the increase in barrel air pressure (the blown air had nowhere to go). there was no direct blame levelled at the RO, it just is what it is, thanx to the NMLRA.
"Distracted by the range officer’s outburst, this had gone right by me, and as a result, I now had some unnecessary and potentially hazardous work to do - removing a charged ball, that I feel could have been easily avoided."