Seems like Bethesda is turning into a company that just wants to make money off the product instead of giving us genuine quality content after release. I don't want 3 little DLC's that cost 8 dollars a pop. I want one big, well worth it expansion.
I think it's more of they want to focus as much of their talent as possible on the next game. That was the complain Hines had against huge expansions like Shivering Isles; it took too long for them to produce. As awesome as it was, they had people left behind still working on projects for Oblivion instead of on Fallout. They've decided it is more worthwhile to use those resources elsewhere. I have no doubt there will still be great expansions for Skyrim, just not on the huge scale of Shivering Isles or Bloodmoon, which is alright. Whatever it take for Bethesda to make the best games possible.