To add some numbers in the hope of providing clarity.
At level 80:
Natural HP Regen - 1.2k
Embrace - 5.3k
Soil - 5.3k
Asylum - 6.3k
Regen - 11k
The potency is weak but given there's no GCD cost that's fair enough. The problem is that you can't lean on it anymore since it's just not dependable in any situation where it could make a difference. Meanwhile soil/asylum are vastly superior at topping a raid between most AoEs and frankly, there's plenty of situations where even just letting people naturally regenerate is sufficient.