I agree! It would be wrong to change the playing characteristics purposely (e.g. draw to fade or vice versa) during a game to gain an advantage, but when a bit of the club falls off, then it is a bit harsh.
Here's one for the rules officianados... You play a bunker shot from the sand and hit a lovely big stone under the sand an take a chunk out of the face of your sand iron... is the sand iron no longer conforming because it has changed????
Not a problem if you do it during the round in normal play - the problem with CH3 was it was on the range.