Project: Gorgon is a 3D fantasy MMORPG (massively-multiplayer online role-playing game) that features an immersive experience that allows the player to forge their own path through exploration and discovery. We won't be guiding you through a world on rails, and as a result there are many hidden secrets awaiting discovery. Project: Gorgon also features an ambitious skill based leveling system that bucks the current trend of pre-determined classes, thus allowing the player to combine skills in order to create a truly unique playing experience.
The Project: Gorgon development team is led by industry veteran Eric Heimburg. Eric has over a decade of experience working as a Senior and Lead Engineer, Developer, Designer and Producer on successful games such as Asheron’s Call 1 and 2, Star Trek Online and other successful Massively Multiplayer Online Games.
I played EQ, EQ2, Rift, and WoW, on non-PvP servers. They were fine and they lasted. I played Vanguard on a non-PvP server, and it was fine (but didn't last, for other reasons). So I don't see PvP as being "core" to an MMO.
I remember too, that nearly all EQ servers were PVE.
Unless they decide to care about pvp at some point, which they really need to, there is little point to nerfing or calling anything OP. It is almost as bad as calling for nerfs in a single player game.
The notion that you would compare nerfing a skill (class) in an MMO to nerfs in a single player game hints at the the current problems with some skills.