While it's not 100% clear, I read the above as connecting "state-of-the art stealth drones" as being connected to "bolster our surveillance capability.”, especially considering the previous statement regarding monitoring facilities (presumably used to launch drones). That being, that the drone development is for surveillance, not for interception of drones. Later in the article it also states:

"Kang said South Korea will establish drone units with various capacities and aggressively deploy military assets to shoot down enemy drones."

While military assets can definitely INCLUDE drones, I'm not really seeing anything in the article stating that the focus is on developing drones to shoot down drones.

>My concern with fixed defense assets is they are sitting targets and once they are knocked out its not an easy fix.

I was speaking more towards man-portable systems such as the Stinger. Quick, dirty, easy to deploy, generally not super obvious to spot like various larger batteries with dedicated launchers, radar, and control vehicles.

Overall as you touched on a bit, there's definitely use cases for air to air drones but at a certain point, you have to start asking yourself what is a drone and what is a missile, and whether you're better off developing large drones with long range and high speed that can keep up with your 6th gen fighter, that have their own munitions to counter drones. Or just creating smaller drone-specific munitions for the existing fighter.

Then again I'm just some rando on Reddit and hardly an expert.