Seems like an extremely elaborate setup for very little payoff.
Won't the snitches get revealed as soon as the lobster throws them? I think so... could be wrong, but I think they do. If they do it means that they will just probably be shot while in the air as lobster throw isn't exactly strong.
You're better off using cloak or preemtively placing snitches in chokes or points of interest.
At least charon drops can move reasonably fast so even if the snitch is shot while flying, it flew close enough to the targets to deal damage.
I realize both of those are manual and your suggestion is "automated", but I wouldn't rely on something this complicated and that attack-move can probably defeat.