Not surprising considering both ArenaNet and Carbine Studios are also founded by former Blizzard employees.
The South Korean's shear adulation of Blizzard is boundless. Plus it's a MOBA and not an MMO, a market space NCSOFT hasn't gone before. One of the founders of Molten Games was closely associated with South Korea's eSports community so there shouldn't be as much of a cultural rift there than a pure Western studio.
LoL is such a huge game in South Korea now I'm surprised none of the local companies have made any headway into that market.
PS. Oh I forgot. Booo Hisss Ebil NCSOFT. A pox on the HVAC system of their new offices.