Drones are the number one killer between all weapons deployed in Ukraine. More than artillery or airstrikes.

I think they meant the kind of warfare cheap drones encourage. I believe they implied other means may result in quicker conflict resolution.

I think the problem is, apart from deploying nuclear weapons, air-based warfare campaigns have never really been all that effective at achieving strategic goals. Bombing stuff always seems promising, but in reality consequences are hard to predict due to complexity and results tend to be underwhelming.

For the same reason, cheap drones favor the defender IMO. A typical country can sustain quite a bit of damage on home soil, without losing will to fight and popular support. On the other hand, the attacking carrier on their coast line, becomes a singular target instrumental to the aggressor's war efforts. On the front, cheap drones freeze the contact line, which of course also benefits the defender.

Ukraine is very successful at keeping front lines relatively stable, despite man power shortages, due to drones, but neither Ukraine, nor Russia are very successful with their deep strike drone campaigns. I mean stuff is burning all over, but it changes little for ending the war so far. Train tracks are quickly back in operation, refineries repaired, stocks replenished, behavior patterns changed. Population experiencing reverse hedonistic adaptation to the new shitty normal. No models to predict resilience. Collapse may happen instantly or not at all.

Also pretty evident with the US/Israel aggression against Iran right now. It somehow always takes a lot more than expected to break your enemy in the deep.