Personally, I am of the opinion that its most likely to sell more cams or they have not figured out how to have an original cam that is adjustable and keep Matthew's efficiency. Most other bow makers have adjustable cams for draw length and/or letoff and haven't lost anything in the process.
I really don't care about the nock travel thing, as long as my arrows hit the spot consistently...thats all I really care about.

Besides, I think Darton had it down pat with their CPS cams long before Hoyt or Matthews started arguing.