Thanks @CrazyMercFan for the info.
So, while I wait patiently until someone from the dev team chimes in on this thread, another news just came in.
"Marvel Heroes 2016" has been approved for 12+ content rating from Korea's GRAC (Game Rating and Administration Committee) on May 27.
It seems the request was submitted by Ubitus' Korean office on May 16.
But all things considered, I think the move is a premature business decision. I still think Gaz should have focused on providing more stable connections and faster downloads, instead of rolling out localized versions of the game to Asia which may or may not be played on region-locked servers. At this point I'm more "concerned" than excited.