Sacred Wisps + Ancestral Bond (Wilma's Requital) not dealing damage

It seems that skills used by the wisps from the new Sacred Wisps Support don't deal damage when Ancestral Bond is active (in my specific case from Wilma's Requital).

I was expecting these skills to deal damage as the wisps use them, not me, and Ancestral Bond only specifies that I can't deal damage with skills I use myself.

Using Ancestral Bond with Mirage Archer Support does not prevent the mirages from dealing damage, making me think this is a bug and not intended behaviour.