On Fey Blessing...

[Deceptus]

2) Resummoning the fairy was always a DPS loss unless the boss had forced downtime.
But now that Largesse no longer fills the healing buff role and the fairy returns automatically... Dissipations usefulness has improved.

Dissipation was bad and always will be bad as long as only 4 scholar spells are affected by the buff you get from it. Everything else we have are abilities and aren't affected.