Wear Level Reduced Legendary Potions

I’m amazed that this has not come up before.

Why can we not use a rank 25 Gem of Ease to level reduce a leg pot?

I had some 25 GoEs to burn and I noticed my fresh level 1 DH couldn’t use my Regen Leg Pot. Imagine my surprise when the cube would not take the Leg Pot as a reagent.

I also think the Leg Pots should roll as Prime, but that is another story.