The card reads: "This card counts as two damage against your hull."
So, does this ignore shields?
If so (that is, if you ignore shields), it is possible you might destroy and already damaged ship even though it has full shields, correct?
For example, if a rebel ship only has one or two hull left, and R2-D2 has repaired it's shields to full (or even 1 or 2), drawing this card as a critical hit would still destroy the ship.