Sure -- if I wanted an adventure that was themed more for Krynn or Oerth. If I want an adventure that runs with the themes that are representative of Faerun, I don't want either of these. I refuse this business of shoehorning in the Elder Elemental Eye and Krynnish Tiamat themes just because someone wants them to fit in the Realms. Faerun has quite enough lore by itself that is recognizable without needing to shoehorn in another world's villains and threats. It's just a very quirky choice given how much trouble they've gone to to go back to the well for the game, only to kit bash one world's themes into another just because someone thought it looked cool.
Then again, it'll be a while before I get to run a game, so what do I know.