Da, errata zice următorul în cazul cultistului:
"The first and second edition rulebooks say: "Whenever at least one of your opponents decides to take Power due to your building activity, advance 1 space on a Cult track of your choice. (You only get to advance 1 space in total regardless of the number of opponents taking Power. If all of your opponents refuse to take Power, do not advance on a Cult track.)"
To this is added: "If all of your opponents refuse to take Power, do not advance on a Cult track, instead gain exactly one Power."
http://boardgamegeek.com/wiki/page/Terra_Mystica_FAQ