Shit, Man. Yeah. I'd run in a straight line.
Would you prefer to run into the raining fiery debris of the ship that had exploded, instead? The rolling Juggernaut was actually shielding and protecting the pair from the shattered fragments of the Prometheus that was literally bombarding either side of the juggernaut.
The path of the rolling ship was the only safe place, albeit a very temporary one.
Either way, it's one seriously f**ked up situation to make a decision over. Instant death from above? ...or near instant death from being crushed. Personally, I'll take the few seconds of reprieve. ...oh, and not fall over. A few extra seconds can all too frequently mean the difference between life and death. Happens all the time. All over the world.
-Windebieste.