Completely random Elec. Shuttle proposal:
EShuttles use a "chain lightning" style attack that strikes a relatively small number of targets, like 10, by bouncing from target to target. This can be a true bounce where each target is selected after the previous one, or just an AOE around the first target that picks 9 other targets. If the former, it could even have some delay between bounces, such as one bounce/frame so as not to overload things. Obviously with this smaller number of targets, their damage could go up. Since they'd be ranged instead of Point-Blank AOE, they also wouldn't be getting suicidally close anymore.
In addition to this though, EShuttles always combine attacks when possible. That is when an EShuttle fires, all allied EShuttles within range of it (the firing EShuttle) fire as well, summing their damage together. This would greatly reduce the target selection even with massive amounts of EShuttles. In addition, I think everyone would be much more pleased when their cap of EShuttles unloads its full DPS on a focused group of 10 targets, rather than spreading it out over 200.
How this "chain lightning" attack gets animated could be just the current Lightning Turret effect on the initial target, multiple smaller "Lightning Turret" effects on each target hit, straight lines (like Beam Frigates) between each target, or an actual "Lightning Bolt" image stretched between targets. I think getting the right mechanic though would be most important over the visual.