Why is everyone here ASSUMING we won't need a proc to pop SHIELD SWIPE ?

All they said was that it's oGCD and it has a 15 sec recast..... that in my book means it has a 15 sec recast to obviously prevent spam, but it will still require a proc when the ability is a viable making it oGCD it's something that it was needed, since it did not made sense that it require a GCD and a proc to work.... but the proc AT LEAST TO MY UNDERSTANDING, it's still needed... so rng factor still there....

Maybe the potency reduction is just to compensate the amount of time we will be able to pop it compared to before....

Like some said it's more of a nerf than a buff, kinda on the middle ground where the change won't affect anything else but the gameplay of the class...