Well because that's still not enough for proper Korea, sure we have mods that can make uber-complete Korea but TK needs a complete product.
First you need F-86, several versions(A-E-F) with proper cockpits
F-84F is fine(needs a cockpit) but at the very least you'd need a Panther for the navy and F-80, and all this should be flyable, and even then all this together with the Mustang is only 4 flyable planes, but that would just be the core.
You also need supporting AI planes, B-29,B-26, etc.
Also you can't leave NK,China and SSSR with only MiG-15A and bis, Yak and Lavochkin props as AI are nearly a must for a serious Korean scenario.
I mean just look at WoV and SF2V, if done by that standard TK would really need A LOT of models to make it at the same level, and did I mention ground objects?
Don't get me wrong I would apsolutely LOVE to see TK's "SF2:Korea", but I just don't see it as an realistic option as TK stated himself several times. It would sure be an epic flight sim suprise though