Well the reason for that is that Destiny's core is pve and the PvP is an added element to support the core. This game is meant for you to explore and kill things and raids are one of the biggest features this game has. If this was a different type of game were the core was PvP and pve existed for the only reason of just having it. People will also complained about. You seem to forget Destiny is not a PvP design game like others, so asking why is there a pve wall is dumb. Destiny PvP is not good but still I do it to get the things I want. After all I'm not playing a game design for PvP to begin with