Lightning Rod anointment bugged

I have an everlasting gaze with 28% mana regen implicit / 29% max energy shield as max mana. It is allocated with conservative casting (20% mana regen and 8% reduced skill cost). I just upgraded to a 30/30 gaze, and allocated lightning rod (non critical hits are Lucky, meaning it is rolled twice and the higher roll is taken).

Since the 30/30 has a dps anointment and the 28/29 has a mana conservation anointment, the 30/30 should be showing more dps in the skills panel. But when I put on both amulets, they're identical. It seems like the Lightning Rod anointment damage is bugged, or at least the tooltip does not calculate it.

I tested this further by logging into my ranger alt, refunding my Lightning Rod skill point, and then putting on both amulets. The result was the same - the dps between amulets was identical, the tooltip did not change.

Thank you for the confirmation.