Not smart enough to follow all that. Let me guess - somebody wanted a Protocraft coupler modified so it would function more like a Kadee?
I believe Protocraft is trying to live up to its name - as close as possible to the prototype. I believe they are into this stuff out of a love for trains, and not out of a love for profit. I personally need to support their efforts more - some of the SP stuff they are doing is really neat.
Do I have a desire for stuff that is not currently available? You bet - but if I am the only guy who wants an item, I do not think expecting Protocraft to do it for me is a good idea.