After 1 (arguably 2) expansions what is square trying to achieve with WAR (and PLD)?

[GoatOfWar]

Once per GCD is a target cap of 1, and would make the healing basically useless when pulling wall to wall.

Would it? I mean, you still get 20% mit, you still get a shield half as big as TBN and 1200-1600 potency worth of healing.