In one case, the pilot reacted to the inaccurate data by commanding a “significant” nose-down dive, over-riding the auto-pilot in the process. ...
Now there's a great idea......NOT!
No other indications of any wrong-doing, normal pitch attitude, normal thrust but the airspeed suddenly drops so let's just shove the nose down. Probably the same sort of person who sits there overriding the auto throttles and wanking the thrust levers back and forth for every knot of speed change in turbulence