I see all your points, but I still see why he wanted to destroy copies. However his later style developed and the complex personal reasons, it was not the style or image he wanted to convey.
   I spoke to Utah a couple of times and asked him about various things, and he seemed to me to be totally 'into' what he was doing.
   I once asked him (during his tribute tour to Kate Wolf) if he really did write "Aces, Straights and Flushes", which I heard Kate sing one night. He replied, "What are you gonna do if I say 'yes'?"
   I said.."Umm.. I guess I'll keep singing it!"
He said.."Ok, then!"
I did ask him another time about how record/CD producers made decisions, and said essentially that they simply 'decided what would sell'. I think his choice of Philo for his most famous albums was based a bit on their willingness to take chances on his 'unusual' style.
I have also chatted with Saul Broudy several times about traveling Utah and how "Aces, Straights and Flushes" was written.

None of this makes me a qualified historian on it all.. it only means I did gain a feel for the authenticity of Utah's purposes and ideas.