Sermon of Courage instead of Fanatacism?

[Karacan]

Each casting of Sermon of Courage or Fanaticism reliefs some of the negative morale modifiers of the units, like having had to watch half their squad eliminated or being subject to missile fire, etc.

So chaincasting Fanaticism makes sense, yes.

I admit I've never seen my level 4 or 5 priests casting Sermon. Are you certain it wasn't some level 3 priest included?