Actually the first plane on the ground was staggered with respect to the others and the final two ones had quite a bit of separation so another, not too unlikel

Actually the first plane on the ground was staggered with respect to the others and the final two ones had quite a bit of separation so another, not too unlikely outcome, is that it would have hit UAL1 and then veered of the taxiway, wrecking the ACA flight but nothing else (Save for possible some last-row passengers on UAL1).