The problem with "Instant OFF GCD" abilities makes combat feel less rewarding.

[Raymeo]

You know 'exactly' when mountain buster is going to happen. Being too slow to get hallowed ground up is not design flaw. You simply didn't think ahead and pop it when you needed to.

Translation: "You simply didn't predict that crit ahead of time." After all, hallowed ground going onto cooldown and leaving us dead before it goes into effect is not exclusive to Mountain Blaster. In fact, Mountain Blaster is so predictable that it's probably the most rare place to see this happen. But it does happen elsewhere all the time.

But yep. You're right. That's on us. We're bad that way. All of us who play paladin and aren't you have a lot to learn.