It's historic. You have to remember that from the mid 60's to the late 70's Swansea were either 1 or 2 leagues below the City. During this period Bristol were in the same league as us. We tended to play Swansea only in Welsh Cup games and while it was great to beat them, the real rivalry was with our friends over the bridge. My son on the other hand, who only started watching the City in the late 80's has the same opinion as you.