Guild Wars is a PvP game, so naturally most of the the updates will be for PvP, shocking, I know. PvE also doesn't need balance nearly as much as PvP does; as long as there isn't anything that's impossible to complete or a skill/skill combo that's incredibly broken, like Ursan Blessing, PvE can be left alone. The Visions of Regret nerf wasn't all that necessary, but Cry of Pain had a nerf coming since it was created. Hopefully Arenanet will get around to nerfing some more commonly abused PvE skills in the future (cough, Save Yourselves!, cough).