nah, SMG's fear, at the start of fliming the show, was graveyards/cemeteries. they had to build a fake on in the parking lot or something like that. she got over at the show progressed and by S6 she was able to sit on someone's tombstone.
That is so weird... Don't editors see this kind of things? 😛.
Sometimes, editors make mistakes all the time though. It's called being human. 🙂