No, your argument was that it doesn't matter that KE is using 3000nm+ capable planes (which the CS300 is) on 1000nm hops.
My argument is that using such planes on short hops is a waste of capability because it is inefficient and there are better alternatives available for such short routes, (Embraer E2/Mitsubishi MRJ/turboprops), heck KE already operates a billion types of planes so what's another subfleet if it came down to it?
Your argument is that it's already more efficient than the 738s KE was using on these routes, which I don't disagree with.
My argument is that KE could optimize their efficiency even further with other fleet choices given their projected CS300 route maps.
First you don't have 130 seater turbopops in the market. Second yes E2 and MRJ may be optimised for shorter haul, but they might not still be as efficient as CS300 goes. We don't have the figure so I can't elaborate too much, but being one of the starting customers must also grab them a good deal that KE can't refuse. Heck LX operated numerous of <1hr CS3 flights (ZRH-FRA/GVA/CDG/DUS comes straight into mind), so why KE can't be the same?
Although I do agree KE operates a billion a/c types, and we never know if they wanna grab more.
They might, but I won't go that far as say they'll use it to CIS countries (other than KHV and forth). They already flies to KWE, got LJ to take care of MFM and CI to KHH. Others, well at least there are competitions flying direct (mostly from OZ). I would rather say CS3 could enable them to fly more PUS/CJU-Asia, although Korean carriers don't have too much interest in the latter one (especially CJU-China).