It boil down to cost. Nothing even comes near to cost efficacy of FPS drones when it comes to resource to kill ratio.I think we are going to start to see the beginning of the end of FPV drones as the Russians appears to be seriously going after their core vulnerability - human operators.
Right now it’s pretty rudimentary mostly down to tracking with their own drones and calling in fire missions on hideouts. But I don’t think it will be long before we see a whole new generation of UCAVs designed specifically to find and home in on FPV command signals and go straight for the operators exactly like how radar guided SAMs were soon countered with anti-radiation missiles.
We might see a lot of the same tricks and counters as was/is used in SAM vs fighters being applied here, but no matter how the arms races goes, the end result is that FPVs will never be as effective as they are right now, where there isn’t yet a proper counter against FPVs and similar repurposed commercial drones.
This is another reason why AI and drone swarms are the proper future successor of the current FPVs and DJIs.
The key question is how long the development and deployment cycle for the hard counter to FPVs will take. But it’s a question of when, not if these will emerge and once again revolutionise the battlefield.
In the meantime, expect a lot more footage of Ukrainian drone teams getting hit as the Russians have correctly marked them as high value, high priority targets. Even more so as Ukrainian conventional artillery forces continue their decline due to shortage of shells and increasingly, attrition of artillery and crews themselves from Russian full spectrum attack, and the Russians start to have more slack capacity to redeploy to hunt for drone operators.
We have repeatedly seen UAV usage blunt battalion sized armored assualts. Mind you this is with a 5:1 artillery advantage for the Russians.
It doesn't take much to become a dangerous UAV pilot, counter-battery works because artillery pieces are slow and expensive. A full kit for a drone operator would easily come under 10k. Any sufficiently populated country can just spam UAV forever, it's not like it is using some specialised equipment. An competent artillery crew take weeks/months to train. Going after a mass produced drone operator has way less of a effect on capability in comparison.