Well, it's actually weird, I don't think they're lockout out on reject path. But in order to start that path you need your gnome, since it looks like the priestess is gated by shadowtech
type: STR_BLESSINGS_2
eventWeights:
0:
STR_WASTELAND_PRIESTESS_2: 100
minDifficulty: 1
firstMonth: 1
researchTriggers:
STR_WASTELAND_PRIESTESS: true
STR_REJECT_THE_POWER: true
STR_SHADOWTECH: true
STR_CHRONICLES_001: true
STR_MONSTER_HUNT: true
STR_WASTELAND_PRIESTESS_2: false
executionOdds: 42