The skeleton variant bloody skeleton has the special quality Deathless:
Deathless (Su): A bloody skeleton is destroyed when reduced to 0 hit points, but it returns to unlife 1 hour later at 1 hit point, allowing its fast healing thereafter to resume healing it. A bloody skeleton can be permanently destroyed if it is destroyed by positive energy, if it is reduced to 0 hit points in the area of a bless or hallow spell, or if its remains are sprinkled with a vial of holy water.
The point here is the destruction, if it is reduced to 0 HP in the area of a Bless spell. That does not seem to make sense. Bless is a burst and every ally is affected that is in the burst, but not one that enters the area later (at least I think that works that way). Why should it have any effect on Bloody skeletons? Hallow makes sense, it affects an area. Consecrate would make more sense than bless in that case. Is that an error, or what is the idea behind this?