Well, as I stated previously, Battlefields are optional (same with the Summoning Dolls). I think the more choices gamers have, the better off they are. BD and DD are 2 games that offer a great game to many types of players. As we can see here on the forums, there are a lot of people who prefer the action elements of BD and DD whereas, others prefer the quest solving abilities.
Larian did a great job at getting these two opposite ends of the market and putting them together in one game. Do you realize how difficult a task that is?
Faralas <img src="/ubbthreads/images/graemlins/mage.gif" alt="" />
As I said, IMO, for a "serious player" of a game like this, no one wants to skip anything, even if it is a giant repetitive area like the Battlefields. Saying the Battlefields are optional is like saying side quests are optional, yes they are, but someone who's really into the game is going to want to do them all anyway.
As for the summoning dolls, yes, that is a better example of something that is truly optional, because not using the summoning dolls doesn't deprive you of any exp, equipment, etc.