Beef between WAR and PLD tanks

[whiskeybravo]

These 2 abilities do not equal out:

Defiance: +25% HP // +20% Healing Received
Shield Oath: -20% Dmg Taken

Example:
(War: [HP Base] 3100 + [Gear] to 6000HP + [Defiance] 1500 = Total 7500 HP)
(PLD: Geared has 6000HP)

If both took 2 hits @ 3k remaining hp looks like:
War: 1500
Pld: 1200 (-600 dmg per hit)

Wrong..

PLD with 6000 HP = WAR with 7500 HP

Incoming damage of 3000

PLD 6000 HP - 2400 = 3600 HP (60% HP)
WAR 7500 HP - 3000 = 4500 HP (60% HP)

Incoming Cure of 2000

PLD = 3600 + 2000 = 5600 HP (93% HP)
WAR = 4500 + 2400 = 6900 HP (92% HP)

Same effective HP