Why do we want to have secrets from our partners? If I issue a T on a player, my partners may not know why and the coach may not know why. It doesn't take a whole lot of time in our "post T conference" to go over the procedures involved and to add "Yeah 44 Blue told me he hadn't seen a call that bad since Jurassic did a game!
" Now when my partner goes to the coach he can tell them what happened. What is wrong with that? It sounds a whole lot better, then telling the coach "I don't know". If I whach a coach, what is wrong with telling my partner why? I may have heard them say something, and they may have thought I "T'd" them for an action that THEY saw and I may have missed.
IMO, a key to good officiating is good communication. We communicate on everything else why make an exception for this? It should be more important in emotionally charged situations, which T's sometimes are. If I think that it was a 'soft' T I certainly wouldn't bring it up until we were in the locker room, and I would expect the same from my partner. Just like any other call.