They spent too much money and Patrick Stewart and Sean Bean and not enough on "general" voice actors. There are like five people voicing the hundreds of characters in the game.
I have to admit, even as an elder scrolls fan whose favorite game in the series is Oblivion, I've never much understood Skyblivion. There's very little you can't do to Oblivion with mods that you can do to Skyrim. Skywind has its own devs, but there are plenty of other games in the series which could use a rebuild, like Redguard or Daggerfall. Despite that, I do greatly look forward to the completion of this project.
I remember a similar project to port Morrowind over to the Oblivion engine. I wonder if we'll eventually end up with a chain of total conversion mods where each installment of TES is ported over to the next installment's engine.
I wonder how many people on the team came from the Morrowblivion project. Can't wait to heart about the Skyfall project circa 2024.