With these specs, I wonder if some countries military wouldn't be willing to offer them more money than they could ever make with deliveries... (At least on a per-drone basis)
Drones work until drone-specific AA is developed, and then it will be the same race we see between tanks and anti-tank weapons.
Drone specific AA will be very difficult.
And for now, anti-drone AA is difficult. But not unsolvable. Jamming, small caliber radar controlled AA guns. Point defense weapons can shoot down cruise missiles and even artillery shells. Applying the same principle at slower drones isn't that hard.
And I didn't make any demands, not sure how you woupd read that into my answers to a thread started with "dropping stuff from drones is an attack that cannot be countered". People didn't learn anything it seems, first tanks were obsolete, until Ukraine wanted every single one of them. Then modern AA made fighters and helicopters obsolete, only to be replaced by drones as the latest shit. Those arguments are just cheerleading whatever is en vogue and hyped.
Tanks being obsolete is… not clear. Tanks vs. western anti tank missiles and drones dropping grenades does feel like a terrible ROI but they are still useful. Russia doesn’t have these things at the same level of efficacy so tanks are perhaps more valuable for Ukraine to have.
Helicopters and fighters are in the same boat. They’re useful, but vulnerable and expensive. The thing about drones is they cost $200 to take out weapons that cost up to millions of dollars.
It is much harder to stop a small drone attacking a mobile position than it is to establish a large AA battery that defends against missiles. Missile AA is for protected largely stationary high strategic value targets. Drone AA has to be for small tactical level targets on the go. Way harder.
Offensive is much more difficult, as it needs to be coordinated with ground forces that can be impeded by mine fields. It is also easier for prepared defense lines to stop drones than it is for an offensive operation in the open to defend against them.
Ukraine vs Russia seems more asymmetric. For instance, Russia can be an existential threat to Ukraine, but the positions can not be easily reversed since Russia has nuclear weapons. While they wouldn't want to deploy them, they'd rather do that than lose Moscow.
Asymmetric warfare makes use of a great number of things, which wouldn't be very cost-effective in a battle of equals. For instance all the insurgents that use IEDs to harass checkpoints, would probably rather use factory made air-craft delivered ordinance.
Human-in-the-loop ethical concerns aside: a highly industrial power can fully automate the entire process and massively scale up from individual-pilot controlled prosumer drones.
Imagine a high-altitude loitering spotter-drone that autonomously identifies any tanks with open hatches and tasks smaller multirotor drones to precisely drop small munitions. You may take out an entire tank battalion for less than the cost of a couple of traditional air-to-surface missile without putting your personnel in harm's way. Future wars will be horrifying for infantry and ground vehicles.
And the safe zone does not start at 6m.