Sure, but as you noted you just move where you launch from. These can be launched in numbers from the back of a truck, miles away. In these conflicts with a small front, that miles away is "miles inside enemy territory". And since it was launched from the back of a truck, even if you could somehow trace the wire miles inside enemy territory, by the time you do that said truck is long gone. You could bomb the position but...now you're just bombing an empty field that tomorrow more trucks could just roll around the craters and launch more drones. And now it's launching new drones at your position from again a different field.

It's honestly amazing how simple and effective this technology is. I don't even know how you counter it. Maybe smaller drones that automatically target behind these drones to try to cut the wires? Sounds expensive