I was absolutely against it and I agree that all that was needed was training and encouraging eliminating bad habits!
Now that the change has been made I am a huge fan. I would strongly encourage visible play clocks as this really helps clarify what is going on to parents, coaches, fans, players and officials.
Alas - A confused play clock operator can make a simple game into a nightmare.
No question, confusion abounds, not only with clock operators. As for parents, fans, and especially coaches and players, honestly, has the availability of ultra-precise playclock time really "improved" anything? Leaving the judgment, of when to start and stop a consistent, exact time requirement, visible to all (paying attention) especially when it came to unique and unusual circumstances and situations, worked pretty well for over 100 years, at all sorts of different venues all over this Country.
There were a couple of specific situations where bad (sloppy) habits reared their ugly head, but they were usually correctable with a minimum of effort and specific focus. Absolute consistency is important within a specific game, within a league and even within a region, but expecting ABSOUTE, MINUTE consistency, of otherwise consistent application of a rule, on a Nationwide basis has shown to be a pretty consistent "pipe dream".
However, "It is what it is" and hopefully we'll be smart enough to go back to the practice of, "when the cure, presents far more confusion and problems, learning to deal directly with correcting specific problems, rather than reinvent the game, seems a much shorter and direct path to eliminating problems". Just a thought.