I'd just be happy with Shield Bash taken off the GCD.
It is the only PLD stun and have it on GCD makes it almost useless, because PLD have always GCD in action and stuns are tactical skill to be used at exact timing. And you cannot ask a PLD to stand still in the event a mob may use the skill to stun.

And I do not care it interrupts my awesome rotation, Stun some skill casting is part of mechanics and have priority. Sastasha hard, first boss, a clear example of that.