The entirety of it. The fact it needs to be invented and installed but what's worse is that this person thinks it's a good idea.
It's very concerning.
Any FPV or modified commercial drone are not doing long range strikes. They are used previously as you suggested, bombing nearby targets. Assisting troops, stopping vehicle assaults and hitting mortar positions etc.
Long range drones are essentially an unmanned remotely controlled plane, like a Predator.
These wired systems are on small FPV and commercial drones which without the use of repeaters etc aren't capable of 20km to begin with.
Yeah, that's a problem.