Are there any plans for ensuring that redundant skills, such as those that put enemies to sleep, Slow enemies, bind etc. can actually be of use in high end raids/dungeons? Because as of now, they only waste space on the action bar. I feel that instead of enemies and bosses being simply imune to these abilities and debuffs, it would be more interesting to need to manage their resistance against these debuffs. Also, having enemies that actually CAN be debuffed would make the fights more interesting than simple dps+mechanics based. And isn't debuffing and buffing what FF has been about before too?

For example, a party would need to work to Sleep some adds, which would grow resistant to sleep. Following which they could sleep other adds. DPS these down. Maybe the Boss could be slowed for a certain duration, then the party would work to reduce its 'debuff armor' after which it could apply debuffs again.