Yes there is splash damage in there but most of it is single target damage. XS fighter flyby in sharpshooter spec is a less than 2 second cast (alacrity) and it's on a 45 seconds cd.
If you have a good healer with you some fun things can happen.
Walk into a crowd of people, cover + hunker down + cover screen then cast XS fighter flyby.
with my gear and no trinket or damage power up XS tics for 1300 regular 2500 crit
Ill say that i find myself only using trickshot, speedshot, aimedshot, charge burst and smugglers luck with regularity. with the exception of defensive abilities