Not really. Knowing they’ll come in tossing lightning bolts willy nilly means you can kind of predict how it will pan out. They travel in a straight line to a target at the end of the day.
I remember in Kingmaker when Cohh was playing a summoner he had plenty of the big energy protection spells ready for when he summoned those dudes.
My suggestion would be to toss them out in front of you as an opening move, but I have no idea how many lightning bolts they can toss. At least that way they’re tossing them down range instead of across your line or at your backliners. And Communal Electricity Protection of course, just to be safe.