An idle thought: what are the chances that someone else becomes high priest (of any of these gods) while the current ones are stuck? What's involved in becoming/being a high priest? It's probably not purely the highest level cleric of the deity in question for most of them, but it's possible that at least one works that way, and that could get rather interesting if they're stuck in place gaining no XP long enough. We know the rules of the Godsmoot don't prohibit transferring the title of high priest, given what the "church" of Hel did, though it's possible they prevent it transferring to someone outside the Godsmoot structure...

Probably won't matter, though; it's more convenient plot-wise if they stay there until things elsewhere get resolved.