I think the only thing that needs to change about it's AoE is that Tenka Goken should be circular AoE instead of a Cone AoE. But I just prefer Circular AoE cause if you are in the middle of the pack you don't need the range of the Cone... provided you don't have to run out of enemy AoEs lol.

In all seriousness I think AoE of a job should always be the same. If one AoE is a cone then all of that jobs AoE should be a Cone as well. If it's Circle it should all be a circle. SAM has a lot of differing AoEs. Line, Cone, Circle, meaning you are constantly trying to move into a better position to use one or the other so you hit as many mobs as possible and it's just kind of annoying. Tho I guess others find it fun so to each their own.