Why Black Mage is the best designed job and what can be learned from it

[Tamaerl]

not a black mage main but i do find it fun in all expansions but if someone already mentioned it then my apologies but is there a reason/argument as to why aetherflow shouldnt work like icarus? this is my only issue with Black mage

You mean Aetherial Manipulation? I wish Aetherial Manipilation and Icarus both worked like Shukuchi.