Many people dropped the ball: Michelin, Bernie Ecclestone, Max Moseley, Ferrari, and Schumacher. Anyone catch him driving Rubens onto the grass after pitting?
I understand the frustration by many fans over Schumacher's tactics, however this particular manuever was nothing like Adelaide '94. Nor was it even on the same level as his starts when he knifes across the track. Due to the pit configuration at Indy, the car exits on the inside line of the track. A car on the inside line for that corner is going to get through the corner before any car on the outside line. Therefore, a car exiting the pits has a slight advantage over a car coming down the straight, all other things being equal. MS had the inside line and never deviated from that. Rubens, in an attempt to make an impossible pass, overshot his braking point and went on to the grass. Thus the only reason the Ferrari's got so close to each other was because of Ruben's late braking, not because of anything MS did. If the pit exit lane was configured such that the car came out on the outside line of the track, then of course Rubens would have retained the lead through turn 1. But that's motor racing.