Well, when we're getting two figures (and a comic) for $10, you can't expect all of them to be brand new.
We have already gotten quite a few packs where both figures were completely new sculpts, so Hasbro also needs to find some ways to reuse parts when they can, to balance the cost. Personally, I think they're handling these kitbashes very well so far. Especially the Commando/SBD pack. I'll definitely be getting several of those.