I really don't see how the current battle system is like the (1111111 2 111 3 111111 4 11111 2 (down) 5 (up) 1111....) system that we had before. Even just looking at the buttons we press....
As a LNC....I'll map the keys I actually press on a sample fight against a 52 pieste. Note that I am starting on the my first bar, and am fully buffed with Protect and Stoneskin on beforehand. (That will be an additional (up) 2 3 but I won't count those since that was way before fight.)
*Start battle*
(5 - engage enemy - (down) 1 5 (up) 1 2 4 3 (down) 3 2 5 (up) 6 7 8 0 9 (up) 1 (down) 1 (down) 7....)
Actions in order:
Invigorate
-engage enemy-
Featherfoot
Life Surge
(up button)
True Thrust
Leg Sweep
Blood for Blood
Doomspike
(down button)
Sentinel
Second Wind
Life Surge
(up button)
Vorpal Thrust
Impulse Drive
Hawk's Eye
Keen Flurry
Chaos Thrust
(up button)
Cure
(down button)
True Thrust
(down button)
Heavy Thrust
As you can already see, that certainly does NOT look like the 11111111 spam we had before. It's different for ARC, but the mechanics for ARC are different as they're actually using an item. There's also plenty of movement of my LNC around the pieste as well.
Of course, there ARE situations where you are liable to be pressing the button over and over again when it is near it's timer, such as during Garuda fight where timing is of the essence. But even so, that's not the 1111111 spam we had before, as each 1-1-1-1-1 actually did an attack, while the spamming of a button for a WS only activates once.
EDIT: Of course, you have to take into consideration that this post cannot be used to perfectly compare the previous combat system to the current. I did not do any testings as to the level of 'spamming' of buttons of the previous combat system, and now it is of course far too late to do so. We can only rely on our memory and judgement for that kind of comparison.