I know this was a long time ago and I'm just listening to it now, but the cars don't go up on Giant Drop at the same time just like Mike said. Some cars will be even with each other while others will be several feet below the others. Than, they all meet up at the top, and they all wait for a certain time until it drops. Than it drops, and the catchcar with the cables are still on top until the ride is all the way on the bottom.
Yet, the cable could have snapped on top of the tower, and went down on the people in that car, and than did what it did that way.