That's true, but I think it'll be harder to win if there was damage, especially when one goes against the pros who do have tactics in cripping the rival and ending all chances of winning (they don't just play rough with skills/tactics, they can run really fast in timed laps too).
It's an arcade game btw... and nowadays, it's already very difficult to win if one doesn't play rough
at all (Not impossible, just very difficult). With damage, methinks the newbies (as well as the more experienced players who still play "fair" to a certain extent) will just get cheesed off... To compensate for some of the cars being too weak (as well as some of the really brutal attacks that sends the opponent airborne), there was a patch that made the cars behind catch up really fast... and then players had to train their blocking skills so that they wouldn't lose the pole position just because someone overtook them while being only 5-10 metres away from the goal.
Besides, there's always the occasional "fun game" where every race becomes a slam fest... LOL...
Well, just my opinions on it...