Every state available to increase has a direct effect on certain classes only, which pigeonholes much of the playerbase into only leveling that one stat for fear of being gimp otherwise. However, the merit point suggestion, or my suggestion of allowing all the different stats in the game (acc, crit, magic def, etc), both give a much larger spectrum for players to choose from. Sure, there will still be min/max players, as there will regardless of what you do, but there will also be far more players who are willing to experiment and try something new, especially if they allow you to reset your points in some interval.
FFXI players used to min/max because it was the most efficient (fast) way to get XP.
Outside of XP/merit party there was a lot more freedom: for example i remember using WAR/WHM more often than you would guess, it was a good choice to travel, and for ballista, besieged and some of the assaults... i was ASKED to play it in dynamis (way too many DD, nobody taking the aggro and the hits).
I wouldnt worry because FFXIV doesnt seem to be an XP grind like its predecessor and min/maxing isnt as necessary as it was there, and we will have much more freedom.
Edited, Jun 26th 2013 3:41am by Falchetto