After doing a sephirot ex training run me and 3 other fc members tried the feast 4x4. We got utterly destroyed in minutes. This kind of matching has put me off the feast for good. So this is one less newbie you have to worry about.
What i mean to say is that its no fun for a newbie to get matched against a veteran team.
As if the skill bloat with regular PvE content isnt bad enough, it gets doubled when you add the PvP skills. How the hell are you going to fit them on a cross hotbar?
I do agree there should be a training mode like they just added for regular combat.