So they had to meet her in order to give her another mark of bondage and borrow the divine ability that they want from her.
Of course, they didn't have to make her come over to meet them before they could have physical contact with her. They could use the liberated form of the pathway of telepathy to travel through the Mindscape and meet her.
This privilege is something that slaves can't get through the Life Bond divine ability. The Life Bond divine ability can only share divine abilities, not special abilities granted by the physique of the liberated divine form.
So slaves won't be able to travel the Mindscape even if they are granted the Mind Domination divine ability. Demigod telepaths will also be unable to travel the Mindscape if they only project the phantom of their liberated form and don't actually liberate their divine form.
