YES, that's the answer I wanted from you.
Your mistake lies in associating 'combat skills' to how many hours you have spent doing the same things over and over in game.
Sorry but I can't change this stupid old ass mentality of yours. You blame koreans game for being ****** (I agree on that) but still you associate grinding with a complete different aspect that is combat.
Ps: Tera is ****, that's why i told you to try out only the combat system. This further proves how much you don't understand how combat should really work and can't recognize a PERFECT combat system even when it'd it you in the face.