Actually, I'm probably the ONLY one dumb enough to try and tactfully suggest that YOUR personal conclusion/opinion does NOT somehow become binding on everyone else. You don't, however, get to rework MY words into what YOU have decided they should mean. Apologies for any confusion I may cause, but if you're not clear about my meaning, I'd be happy to clarify if asked to.
Retrofitting thousands of NFHS venues with play clocks may somehow prove to be the ultimate solution, to what currently seems like an otherwise, relatively minor, somewhat inconsistent problem, but I seriously doubt it, and all the barking that it is some "Holy Grail" isn't going to alter reality. Timing "play duration" currently is, and has long been effectively managed (with intermittent problems) by game field officials. Perhaps a review of current mechanics to strengthen the existing procedures and responsibilities might be appropriate, and remain substantially more cost effective, to produce desired improvement.
I do agree that this discussion has far exceeded it's value, and hope ALL potential solutions will, at least be considered, before leaping off a "Retrofit all Venues" cliff.
Since you asked, specifically, about my mention of the issue of dual vs separate "Clock Operators", I was simply adding the reality that this is an actual issue, currently in dispute, that involves the ongoing cost and management of dual timing displays, that could be eliminated by increased focus on existing on-field mechanics.