indeed, for rival games it should be the same, however, your rival is mostly one which is a team that is compareable to yours (if I understood the rivalry thing well enough) while for TV games a lesser team can play a much much stronger one, and it isn't logical to me that the fans of the small team are not exited to see their team lose by just 2 points against the gigger team.
Moreover, I was totaly inspired by the rules (at the time I translated them) which say "win big, or loose a nailbiter on the road" , which made me think it would have the same effect on the fans, which obviously is not the case now...
They are not your friends; they dispise you. I am the only one you can count on. Trust me.