I think people are missing the part about how a full party of players at the appropriate level to do these missions has no chance to survive if they get aggro. I don't think the OP would have a problem if the the mobs checked IT, but a low IT that a full party could manage. Later on in the windy mission line, it is required to go to the 3-mage gate. There are 80+ level goblins on the way, impossible to handle if you are mixing up leveling with missions. Level to 99, then do it should never be the answer.

The same thing with heading to Fei Yin for 5-1. Since this used to be a 50 cap, it is reasonable to assume that regular mobs on the path to the BCNM should be killable by a party of level 50's. But the room full of ghosts on the way there would once again be certain death if someone got aggro at that level.