Bramblejack & added flat phys to enemy attacks from kalandra reflected jewelery.

Hello, I have been trying to make Bramblejack's revised reflected damage into a build. At the center of that is the belief that the kalandra mod that reverses player flat phys into 'Adds # to # physical damage to attacks against you' will also be reflected by the Bramblejack.

I've attempted to test it, but I'm finding that experience unclear at best and discouraging at worst. I think that the interaction currently does not work. Could someone verify whether it doesn't work and isn't intended to work the way I had hoped? Or if it does work, confirm that it is just a very minimal impact and not a viable way to scale damage?

Thank you.

Edit- Realized I could test the interaction in a duel. I believe that the Enemy flat phys mod is not being reflected. Could someone confirm that is intended?