Armenia had no air force to counter azerbaijan's drones.British army after seeing the nagorno karabah war has decided to get rid of its tanks and focus on drone. Pakistan should also not buy any more tanks and invest in drones and loitering munitions. That's the way forward. Cheap effective and easy to make
The UK is an island, it doesn't really need tanks. When it primarily goes to war, it goes to war in foreign nations, and in a limited capacity against insurgents. Tanks have only very limited use for the UK.
Against India, Pakistan will need heavy tanks. Drones are all fine and dandy, and they'll come in use, but India will be able to shoot them down easily with their air force and air defense systems. Samething with Pakistan, where Pakistan will easily be able to shoot down Indian drones.
In order to ensure effective use of drones, you need air superiority, or at least enough stealth to ensure the drones survivability. In an India-Pakistan conflict, neither side can guarantee either of these things.
The Nagorno-Karabakh conflict did demonstrate just how lethal drones will be, but context of the various battles is very important.