It takes at least 2x as many trigger pulls to effectively target party members as it does enemies.

As main tank vs Garuda EX, for the entire fight you will have to switch targets perhaps a dozen times between Garuda, Spiney Plume, and Suparna. And they are easy switches, because you never have to deactivate your XHotbar to use L1/R1 to cycle thru enemies. Same Goes for off tank, with perhaps double the target switches. Simple inputs.

As a healer, on the other hand, vs Garuda EX, every time a player takes damage to switch to that player you must deactivate your current active XHotbar, up/dn to the injured player, reactivate, and cast. This, x8 players (as opposed to 3 enemies) takes a lot of careful management of your trigger pulls (activating/deactivating) and selecting party members (up/dn).

Additional thoughts on the subject here:

http://forum.square-enix.com/ffxiv/t...on-more-macros