Thomas,
I'm a little surprised that with all I've written on this subject, all you have to comment on is my answering a question with another question.
I've been training dealers for over 30 years and it gets more difficult every time a TD, or new rule, complicates a routine situation. I place more blame on dealers than most, but I feel they should be allowed to do the job they were trained to do. There are TD's that had bad experiences with a few dealers so they don't want the dealers to do much of anything. They take away the dealer's authority necessary to control the action at the table.
There are hundreds of situations that have been discussed on this forum, and I will stick my neck out and say that a good dealer would have prevented 90% from occurring.
Rather than stifle them, let the dealers do the job they were trained to do. An inattentive player mucks his hand (when he shouldn't) and the dealer gets blamed for not protecting the hand from hitting the muck! As far as "working brain cells" I'll put most dealers against players any day of the week.
Thomas, if we are so concerned about the integrity of the game, and no chip dumping, and no collusion, then why not have all players, in for all bets, table their hands at the showdown? That is a question.