I know traits don't normally stack, but Blessed Touch doesn't read as a trait bonus (at least, it makes no mention of bonuses). The Rescued campaign trait from Jade Reagent adventures, on the other hand, explicitly gives +2 trait bonus to HPs healed with cure spells.
Blessed Touch: You heal 1 additional point of damage when using lay on hands, channeling energy, or casting a cure spell.
Rescued (relevant part): You gain a +2 trait bonus whenever you use cure spells to heal damage.
Yay, or nay?