Matt Oxley and Rawr make a valid point... especially the Mick Doohan quote... but what argument for traction control can be heartening if at the end of the day, it makes the racing boring?
Faster lap times, getting clocked in, all in single file, means nothing. As fans, we sit there in our rider's colours or whatever and think, "gee, they sure are going fast!" Is that meant to be enough?
The skill to push a bike to it's limit, and the skill to push a bike and yourself to the limit, and the skill to do both of those things IN A RACE, AGAINST OTHER RIDERS... well, that's racing. But just man and machine, alone... that's called practice sessions... not bad to check out everyone's times, but we're only interested because a race will follow.
And any argument that accepts traction control as just another fork in the road and standard development practice... when it actually starts to VOID rider talent... that's pretty crappy... Valentino Rossi, as documented somewhere in this forum

, has to fight his electronics because he sees better ways of taking a line than what has been fed into the computer... his smarts and talent are being stymied... that just isn't interesting when someone is a phenomenal talent and it doesn't mean anything to racing... or even worse, becomes a hindrance...that's when it's time the robots really did step in.
Motorsport can't go down the same path as music or film or tv... mediocrity shouldn'tbe acceptable, it shouldn't be laudered... the singer who can't sing, the actor who can't act, the writer who can't write... talent and smarts have to be worth something, somewhere in this tedious world...
Maybe KC would have come through on the 990s and been WC... maybe underneath all the teeth there is a major talent (I'll concede, he's not bad, he doesn't suck, you can't win so many races and suck

), but being inexperienced enough to adapt quicker to a new class and new electronics... I don't think that makes you talented.
I want talent to prevail... talent is exciting, exhilerating, wonderful stuff to watch... and that not all of us in this world have a talent for something (so many don't!), that's what makes someone compulsive watching...
Talented racers... let them prevail. Whomever they may be.