I think we are looking too deep into this (ok that might be the understatement of the year). But as much as I hate to admit it I see what snorman is saying, just reading the rule it appears that if they cause INT they are out, but I think it is if they DO something that causes INT then you have an out. Now that sounds like the same thing but it is NOT, if they are running the bases as the normally would and the ball hits them in the back I have nothing (besides time when action stops to make sure they are ok

) Now if the BR is rounding 2nd heading for 3rd and they adjust the way they are running to try to put themselves inbetween 2nd base (throw from outfield being relayed) and the F5's glove that is moving as it tracks the ball and there is contact then I have INT, the runner did something to cause the INT, he / she moved to get themselves in a position to be hit by the ball thus creating the INT, in the first example I had, he / she was running to the base and the ball contacted them, they didn't do anything to make it happen so there is no INT.
As it was described to me the rule should be called the same way, it just takes out the umpire trying to judge intent, since we can't know what they were thinking, but we can judge what they did.
And if questioned by the coach "Coach in my judgement that was not INT" that is not protestable and there is no rule interp they can bring into the conversation to make it protestable.