Just a simple question. When you reach the final mission of the current Storyline and fight whater final boss it will have. Will you have the feeling the fight is "epic" and you actually safed the world from extinction, when all it takes is you, alone, fighting that "mob" for 1minute max? Will you feel accomplished and like you "achieved" something?
the fact alone that you think CoP was more frustrating then "fun" only shows you prolly did it with pick up groups only, or with "friends" who got no skill, cause seriously. CoP was challenging, but with preperation EACH fight was doable 1/1 easily. I personally formed a static for CoP back when I played FFXI, consisting of RL and In-Game friends. We almost cleared every fight 1/1...yes...even Airship and Tenzen etc...with proper preparation it was easily doable...but with pick up groups, all they want is to start the fight, wipe 2 times and break...of course CoP wasn't fun that way...but it wasn't SEs fault...it was your fault then. CoP was not Zilart, where you could rush through the Missions in a day...and thats something that made it even better. Cause the storyline was epic AND the fights in it were challenging to actually favour that "epic" feel.
When I defeated Promathia, I felt like I really saved the world.