Maybe fantasy flight expected everyone to jump on board with the Youngster + Expose swarm.
Since Imps don't use turrets, it seems to be a good fit for the Ghost. Protects from reroll based swarms and Interceptors that can routinely put 3-4 damage on an enemy each turn. Maybe they wanted to make sure the Ghost beats the Decimator 100% of the time.
The only effective use of the Decimator is either a Oicunn expert handling rammer or as a Darth Vader gunner, it seems.
I once one-shot Wedge with 5 damage (no modifications) from a TIE Phantom at range 1 when he rolled all blanks for defense. If he had integrated Astromech at the time he would have survived to shoot back.
Edited by Vulf