Paladin’s HP restoration works on HP regen ticks (20 second per tick while standing, 10s while sitting). Healing Factor regenerates overtime without ticks.
People mostly takes Restoration for SP purpose.
For Aukuras, while it does give sweet regen speed buff, people with low con hardly benefits from it, and the HP regen per tick does not quite cut it in battle. Its still good to use it if you have no cleric in dungeon party and relies on bonfire for HP.
Also the accuracy debuff on Aukuras gives PD’s Incinerate longer duration since more debuff = longer duration for Incinerate.


