Castrum Meridianum and Praetorium are bad, yeah. I've seen people on Reddit actually consider dropping the game because of the terrible experience newbies get in there. I think they should be turned into single-player instances - herding newbies onto PF, or forcing everyone to watch the cutscenes, or encouraging rouletting players to let newbies take there time won't work. It might mitigate the problem somewhat, but I think people deserve a grand ending to the ARR story that isn't ruined by speedrunning farmers. This ain't that.