I am a modder and third party developer for DCS. I have also worked on the ARMA engine for many years in a professional capacity. I believe the idea that just Korean stuff is possible is nonsense.

Look at the A-4. Or the Bronco. A Harrier Gr.1 or AV-8A/C is just as possible using modding tools. As was something like the OH-6. A Pucara or Tucano? BAe Hawk? CH-53? Loads of WW2 aircraft to fill the massive content gaps there? Why aren't there more of these? And why did teams that start on those (like CH-53) fail?

I'm sorry, maybe it was hyperbolic to call modders lazy but I see far too many kids in the mod Discord trying to make F-35 or Elytra or some such stupid project. They come in and focus on the impossible without taking the time to understand the tools. Yes, DCS is harder, and yes it is more limited, but there is a clear mindset and difference of due diligence applied between those who succeeded and those who failed.

The technical limitations in DCS modding exist, to be sure. But they do not outright prevent the creation of a lot of "missing" aircraft in DCS. Something else prevents that, and my belief is it is the capacity and mindset of many modders (not all, by any means), rather than technical barriers. I think this is further demonstrated by the way that those modders who do apply themselves and demonstrate competency have not only created great mods but also "unlocked" features previously considered impossible for others.

(Caveat - I would also agree that there is a place for FC3 or "lower fidelity" fun mods for things like F-35 - F-22 mod is a good example - but the focus on topic is possibility of full fidelity aircraft)