It's not really misogynistic as much as it is stupid. Ben deals with otherworldly crap that's trying to kill him and the people he associates with all the time. So the assumption that they would go after his wife, who doesn't deal with that sort of thing, and physically doesn't really have any way of protecting herself, isn't exactly totally crazy. However, the idea that whoever it is would have a thought process similar to "Hold everything! If there's no ring, we can't touch her! Guess we have to go home empty-handed!" is ridiculous.