I love what you said Jim. I just wish they could go down this road and still have a tight rules set.
Look at magic. It has a great set of rules and constant changes in available cards. This creates a giant open world of possibilities. When you come down to play magic you have a type, standard, constructed, draft, Modern, ect. For me, I enjoy magic in draft and in the computer games. Just really don't want to play the pay to win game. Prefer the strategy of the game not the wallet.
I think you were right in that the social group is going to have figure out a way to explain the type of game they want to play. The only real issue here is that this limits the games potential and makes it really hard for new players. New game formats usually mean more money, which is a barrier to entry.
I would prefer if there was a more standard rules set that was easier to branch off with. The problem is that they can't seem to write two codex's the same way or the same power level, so each codex feels like an expansion, with new rules and power levels.
So to answer the question at hand, I am not stoked about the direction, but I am happy I live in the Northwest where the gaming groups have the right idea to make it work.