Delirium freeze ignores Brine King Pantheon and reduced freeze duration?

The Delirium ability that covers the ground in an ice wall/ice path or whatever it's called is bugged or completely unbalanced. Half of the time it does next to nothing, the other half it perma freezes me. My character has Brine King pantheon that states "You cannot be Frozen if you've been Frozen recently". I also have %85 reduced freeze duration and %100 reduced effect of chill. If it inflicts a 10 second freeze that should mean I am frozen for 1.5 seconds at most. After that I should be immune to it's freeze for 4 seconds from the Brine King pantheon. I have the Agnostic keystone and stayed frozen, taking damage, through 5 mana flask uses. This is way longer than 1.5 seconds.

Is this ability bugged? Does it have it's own special mechanic that makes it ignore my passives, pantheon, and gear investment to reduce freeze ailments? Can it inflict some god like 60 second freeze on you?

I know there is a flask that reduces effect of freeze. The whole point of spending 4 passives points and buying/crafting a synthesized item is to free up this flask slot for something better. I accept that I will have very short freezes inflicted on me but this Delirium freeze is beyond ridiculous.