About "area-creating actions"

[ChazNatlo]

so on the SCH action Sacred Soil and the WHM action Asylum they both say, "Cannot be used with any other area-creating actions."

me and another player was able to determine that both actions can indeed be used together. both of which are area-creating actions. both effects were in-place and in-effect. i benefited from both, the damage reduction & healing.

anyhow, can someone help me understand exactly what the tool-tip is trying to tell us?

Well, I'd need to check to see if I am remembering it correctly, but typically you can't use such abilities with your own alternate area creating abilities. Not sure about the other classes, but for example, you can't sacred soil and Shadowflare.