
Castilliano |

The d8 full caster classes w/o Wis as their primary stat get bumped up to Legendary Will. I think it's to balance against the higher Wisdom of their peers. (And to keep those peers a defensive notch above those feeble d6 folk. Hmm...would a Wisdom d6 caster only go to Expert Will to balance?)
As to the OP, do Psychics perhaps have other senses (or options for) to make up the difference?