Yup. Chances are if you get killed after being hit by a firebolt you'd get killed after being hit by most grenades. Since you need recover time anyway and it doesn't take 10 seconds to pop a shot and finish someone off. Or run and block off your path with your own grenade or even a smokebomb, hit them with a grenade that can kill by itself, run crouch and then shotgun. Get around a corner then place a sniper at head height. Time a fusion rifle shot for them coming around the corner. Double team them with an ally. Double nade them with an ally. Or just run until you recover. Then next time you engage them, plan for the event you get hit by another one.