EA executives are on the floor laughing with their dicks so hard they are almost poking their eyes out at everybody who is throwing more money at them after having already paid for the 'soundtrack' to pay again to get the rest of what they already paid for. "Why give somebody what they paid for if they'll gladly pay twice for it?"
If you buy a movie soundtrack, are you actually expecting it to contain every song you might hear on a car radio when people are driving, or out of a jukebox in the background in a bar, or hummed by someone passing you on the street? I got a great soundtrack with my digital deluxe edition. These tavern songs... really, I cannot fathom how you can possibly think those types of tunes should have been included.
But hey, I'm being paid by EA to support them in the forums, so take what I say with a grain of salt.
( the last line above isn't actually true, btw, but I anticipated the accusation, so thought I'd deal with it right away)