You keep mentioning PDGA, they would have no interest in this. They are given discs, check to see if they match legal specs and approve or not. How they actually fly is of zero concern to them, nor should it be.
A major retailer like Infinite, Marshal Street, OTB etc... might have more interest. The ability to move a larger variety of products and plastics, there are already flight comparison charts and they put their own flight numbers out there. Something that makes that more consistent I would think could only help. People are always asking I throw this disc but I like this other plastic or manufacturer what should I throw?
For me personally it seems something fun to think about for MY discs. I can't throw 5 throws in the exact same way in a row so I really have no idea how some of my discs compare. It would be interesting to see how some of these similar plastics different speeds, different states of wear, all that flys when the human inconsistency factor is eliminated.
The mythbusters idea seems great to me. An arm that mimics a DG throw, that actually can grip the disc with fingers, adjustable for grip strength and arm speed. Can see the way two discs compare, know how one works for me and have an idea how the other might behave.