And don't forget in Grymforge: A History it says that there was an older Grymforge, that Silouv's pact with Ketheric is trying to rebuild. So it's possible there was a forge at the temple already but Silouv rebuilt it. I'm not sure what you're referencing with the wight, is that a Halsin convo? Also Moonrise is a Selunite cathedral, so some references to a Selunite Temple might be confused.