BG2 was the "lead SKU" also. Try porting that to an XBox 360 and see what happens.
I don't understand your point. Are you planning on getting the Xbox 360 version? If not, you shouldn't be concerned. The game was designed for the PC. It was ported to consoles after the game was already content complete on the PC. No design decisions for the PC version have been affected by the console versions. One look at the interface is evidence enough of that.
Is DA going to be streamlined compared to BG2? Sure. All games are streamlined these days compared to the days of old. However, it isn't going to be streamlined because of consoles.
Hell, maybe a bit of streamlining is good in this case. All the classic CRPGs had notoriously lousy interfaces. BG (and all D&D-based games) also had a ridiculous amount of redundancy in the spell selection. I'm also glad that I won't have to rest after using a spell once.