Just to note, Usually you are moving your skimmers greater then 6" (raiders) and don't really have to worry about these results. But if you use the ravager to it's full effect you have to move no more then 6" for all main weapons to fire, or move 12" and with the right configuration ( 2 dissy 1 DL) you can use the dl and dissies on sub level.
Funnily enough I have had games where the Raiders are seemingly bullet proof, as the enemy prefers to target other more important units.
This leaves them to do whatever they want, so I have parked them right in the middle of the enemy deployment zone – dead stationary for 2 turns. The enemy is eventually pressured to take it out and a few times I have had a “Vehicle Annihilated” result that in fact hurt the enemy more than me!
So the moral of the story I suppose is, move your skimmers more than 6” if you want them to survive but park them with the hand brake on if you want to create a wreck that blocks LOS or achieve that lucky mini minefield.
Cheers.