No one is saying anything can't be done with WAR, that's not the issue, WAR can be used in any content (I have no coil turn 5 experience so can't talk about that). The problem is, there's no reason to pick WAR over PLD for pretty much anything and when given a choice, people will always pick PLD over WAR because it's the safer option (because PLD simply takes less damage from every single hit and is not in as much danger of going down because of multiple crits in a row, for example). The problem is, WAR desn't have any advantage over PLD when PLD has a clear advantage over WAR.