I think the Geran is temporarily in a niche between the envelopes of ground-based gunners and missiles homing on radar or heat.
I suspect that weapons designers are paying attention, and within a few months there will be cheap and mobile weapons that’ll fill the current capability gap and toast tge Shahedski.
But for now, Russia can lob weapons that are remarkably like the Henschel buzz bomb that the Germans used very similarly: to target civilians and erode morale. Like the pissed-off English, I think the effect on Ukrainian morale will be paradoxical.