Yes sure that an SMN can you kill in faster than 15 sec. but 0 äther = 0 dmg. I am sure that every job have this heavy dmg rota.

Your biggest problem is your inexperience. I destroy SMN's with my ninja and mecha, so i do not understand what my enemys do.
Since i play FF as SMN, I losed maybe 15 1vs1 matches there where 2 ninjas who understand how to use silence, stun, bind and slow, 1 realy good bard which surprised me with his dmg (normal I eat every bard which cross my path) and some SMN and War.

The real unbalanced job is the WAR, high def, high dmg, high heal.
And there is a heavy differnece between melee vs war.

You will do easier pvp if you know enemys skills and cooldowns.

Check this: https://www.youtube.com/watch?v=e7vb...ature=youtu.be