Holy Paladin Mastery no longer works on HoTs

It has been no secret that Paladin mastery for healers has been pretty overpowered this expansion.  Blizzard has taken steps to nerf Paladins somewhat, and the nerf to Mastery has had the tooltip slightly changed.

Mastery: Illuminated Healing no longer works on HoT spells.

This is a slight change from the previously announced change.  And it effectively changes it back to where it was pre-5.2 when only direct heals resulted in Illuminated Healing.