Resistance - Blind - Scout 255 - Dispersion Field

I encountered this last nite.
I fire a Thalaron weapon at a ship equipped with Dispersion field.
I rolled 5 damage; which 1 went to wipe out the captain and another towards a crew member saved by the dispersion field.
Now that would allow 3 more damage to hit the shields, but because a crew member still exists, we ruled that the damage is discarded.
1) Is this how it should work?
2) Because crew were protected and skipped over, damaged is applied to the shields?
3) Dispersion protects the first crew from damage, is discarded, so 2nd damage needed to remove that crew.
Thanks
I fire a Thalaron weapon at a ship equipped with Dispersion field.
I rolled 5 damage; which 1 went to wipe out the captain and another towards a crew member saved by the dispersion field.
Now that would allow 3 more damage to hit the shields, but because a crew member still exists, we ruled that the damage is discarded.
1) Is this how it should work?
2) Because crew were protected and skipped over, damaged is applied to the shields?
3) Dispersion protects the first crew from damage, is discarded, so 2nd damage needed to remove that crew.
Thanks