She's been to rodeo before, I'm sure there is more to the story. I'm guessing it's on the tape, the possibility the Board is investigating is HOW much the non-pertinent words affected the flight. This wouldn't have been said, if there was nothing to it. What, the Board Chair offers this up, then the report doesn't cite non-pertinent conversation and the transcript doesn't show it? I don't think so.
That speculation given, yes, being quiet would be better.