Yeah, I guess it's best to take something like this out of the official scorer's hands, and make it a matter of rule. Because you obviously aren't ever going to be able to predict whether the other guy would have made it if a play had been made on him. By the same logic, though, you might make a case that the trailing guy should NEVER get an SB if they make the play on the guy in front of him. He's basically just trailing on the lead guy's wake. I'm glad I don't have to make these rules.
So how do you score that play that put Jeter on second? Fielder's choice, I guess...?