Come to think of it, is there an error in the article? Just checked the rulebook, and as far as I can tell you only roll to see if you suffer damage if you perform a maneuver that moves you over or onto an asteroid. Normally barrel rolls and boosts into them are outright disallowed, so the rules don't cover it.
There is no error in the article. The article mention "in the following round". It is easy to miss.
Article:
Forcing your opponent's ship through this boost or barrel roll does not count as an action or a maneuver, and you can force the ship to overlap obstacles, meaning that if you catch your opponent's ship in the right spot, you can potentially deny it the chance to fire and to perform actions in the following round. Moreover, you may get as many as two points of damage out of the collisions, depending on the results of your opponent's attack dice.
the only bold part is what your talking about but if you only roll a die if you manouver onto or over an asteroid it is not possible to have 2 damage(beside a double hit crit). forther more they are talking about collisionS. and in this case its only 1 collision, init?

