I was thinking the exact same thing. Prestige, Gridiron Gear, Threads, R&S are all just part of one big crappy set. If you took the set logos off of the cards, you wouldn't be able to tell what cards came from what set.
In the olden days, when you saw an insert, you instantly knew that it was Upper Deck, Ultra, Donruss, etc. Now, most sets have no identity, and thus no collector allegiance.