Can Dissipation please give you access to the sacrifice fairy abilities?

[_slowpoke_]

But what if your in a emergency situation, and everything you pop'ed are still on cooldown when you needed to Dissipation?

If you're treating Dissipation purely as an emergency button, you are using the ability wrong in the first place (same as WHMs who keep sitting on Benediction and Tetra for this purpose). Yes, it can be used that way, but the major uses for the ability are strategic: for additional DPS, in preparation for a planned fairy switch, and/or to buff deployed Adlos, often all of this at the same time. For example, back when Sephirot Ex was new, our SCH would usually use Selene for the first two phases because I was mostly solo healing the first phase anyway, then sacrificed her at the end of the add phase to push a bit more DPS, then used the 20% heal buff for the Adlo he deployed for the Ultimate, and afterwards summoned Eos for the last phase once the buff wore off.