Delayed armour break after exploit weakness - Uruk's Smelting

Trying out the new Uruk's Smelting lineage support (https://imgur.com/a/uxYeHbQ)

I'm noticing a problem with trying to stack it as high as possible.

After fully breaking the bosses armour, I use Expolit Weakness support to remove armour break and stack up a new one. But there is like a half a secound delay before I can start breaking armour again.

Im breaking armour with Tempest Bell and Staggering Palm, and removing it with Ice strike (expoilt weakness)

Clip for context: https://imgur.com/a/vEhJSGC

Is there supposed to be a delay - Can't find anything about it.

It says on the consume tag that the enemy is immune to the debuff for 1 second.

Here is my thing with Uruk's smelting, why do we have to continuously break and reset the armour break to get the % damage, By the point you reach 10 stacks the boss or monster should be dead already. I dont know why it isnt just a one and done type of thing. or its liek 5% per armour break stacking up to 4 times. Or even a 10% increased physical damage taken One time. Having to stack it 10 times to get the 20% increased damage taken is ludicrous. You dont want to wait around that long in order to kill something. Or it should be based on the Increased armour break efficiency?