Good article.
The issue is one more of how to defend all assets against drones. And that doesn't just include defensive assets but also offensives ones such as hunting down mobile drone launchers or destroying airfields used by drones.
One thing that is ignored in all these little wars is that the drones are often used in place of far more powerful jet fighter bombers or helicopter gunships.
A fighter bomber can deliver a lot more firepower than a drone and also can respond more quickly due to high speed.
However a number of factors are playing against the fighter bombers or helicopters in these wars :
1. Full fledged combat aircraft are expensive especially when compared to a drone.
2. These countries often don't operate sophisticated combat aircraft in any numbers. Very often there might a squadron of Su-25s or MiG-29s and sometimes only dribs and drabs of MiG-21, MiG-23s and Su-22s (eg Libya or Syria).
And these aircraft lack modern defences against SAMS as well as guided weapons.
3. Even archaic air defence systems are useful against older fighter bombers and helicopters. And both Armenia and Azerbaijan have them whilst in Libya they were provided by others. In Syria the air defence is provided by Turkish F-16s or Israeli F-15/-16s which are so far largely untouchable.
It should be noted that Azerbaijan posses a fleet of about 60 upgraded Mi-24 and modern Mi-35 helicopter gunships as well as nearly 100 armed Mi-17s (also assigned to paramilitary units). There's also a small squadron of non-upgraded Su-25s and another of MiG-29s (about 30 combat aircraft in total).
These have played virtually no role in the war despite the mountainous terrain where helicopter transport or even airborne assaults and infiltrations would be useful.