Sounds like we need to start having regular dungeon events to show people the basics in a fun way without any pressure. Because they really are fun guys, and are not to be missed. I can't speak for every single GAFer, but I personally love showing people the ropes and dungeons have all sorts of cool things going on that are worth experiencing.
I don't mind if it takes longer than usual, or we die a lot, or whatever other outcomes you might worry about; repairs are free and as long as people are having fun, that's the important part. Some of my favorite dungeon runs have been ones where we fail (usually because everybody is so laid back and/or drunk that it's funny rather than frustrating) and some of the worst dungeon runs have been fast, efficient speed runs.
I know Hawkian loves doing dungeon runs and I'm sure there's quite a few others lurking about. Maybe we'll schedule some after Makeups or on an weeknight.