Not sure why you have to sound so ... vindictive? The system is hardly new, they already used it in the PvP for a few years now, they just now expand the use into PvE. What you described is not exactly uncommon either, one button SMN rotation using hotbar swapping had also existed a long time for example. But for people like me who have a specific use for every single hotbar, we don't have spare hotbars lying around to macro swap so the new system is welcome.