I would agree with you, but unfortunately the "regeneration" Amplified Healing refers to, is Health regeneration. I've done some testing, and no where did I see it contribute to Mana Regeneration.
Granted, I don't give Amp healing enough credit. The synergy it has with Holy Radiance, and Hardened Focus is quite fantastic. I need to update the guide anyway, so I'll be sure to keep Amp Healing in mind.
Thank you for bringing this to my attention. :)
Posted: Apr 19, 2016