If you think Aqueducts is hard, CoP is going to eat you alive regardless of whether they soften it up a bit. It is, by comparison, one of the easiest mission. It takes people who aren't clueless to do CoP missions. That's the biggest problem. Trying to get 6 completely competent people with enough time on their hands and a willingness to do the mission simultaneously is quite difficult. On top of that, a good number of people are through with CoP... these people being generally competent. So the number of competent people that actually need the missions is pretty low.

Key to Phomiuna is this:

-Clear Fomor hate ahead of time or else, be KEENLY AWARE of blood aggro.

-Know how to fight Tauruses and be ready to either turn around, spam cursna, use Holy Waters, etc.

-If it's unlikely that everyone in you group can sneak past a group of mobs, just fight it. It's easier to take them out without risk than training 5 of them. Be KEENLY AWARE of blood aggro.

-Have at least one person aware of the point where you get drawn in to the Minotaur and make sure they inform you not to go beyond that point until ready.

-Be slow and patient in the libraries and make careful pulls so as not to get multiple Tauruses. Be KEENLY AWARE of blood aggro.