Aquamarine Flask not reducing effect of Freeze on you if used while frozen.

As title. Post-3.15 rework, aquamarine flasks have the implicit "40% reduced effect of Freeze on you". If you use one, and then become frozen, the freeze will only lower (reduce or lessen? not sure) your action speed by 60% instead of 100%. But if you are frozen without the flask up, and then use the flask, the freeze's effect is not reduced.

Not sure if this is intended or not, but if it is intended, it seems counterintuitive.