Aetherflow is only used for Healing abilities now and if the Tank is dying before you get into battle (maybe use Bio?) then something is going wrong. You also don't NEED stacks after a fight ends, and slowing things down is a weird thing to do imo.

And speeding up MP recovery between encounters? What's the difference between using it between an encounter and using it in the encounter? Its not like it takes that long to recover MP anyway.

Sure it still feels weird not using Aetherflow whenever I want but the thing is is that we don't need to use it on CD anymore. Why? Because it can't be used on a DPS skill anymore so "sitting" on stacks, or not having stack wight when you start a pull isn't hurting anyone if you are quick at getting into a fight.