I see the 'this isent baldurs gate' complaint so much and noone can voice well why they think it isent a baldurs gate game.
It's difficult to articulate. I guess it just 'feels' too close to DOS and so it cancels out the nostalgic feeling people want to feel. It doesn't throw them back to the original games.
I'm sure there are many small differences that are not a problem by themselves but the accumulation of them is enough to make it feel like DOS rather than BG.