Not a slip up. We already have the infrastructure to handle parties of two. Adding another person creates a lot of new situations that we don’t currently have processes to deal with. The added complexity in a legal relationship between three (or more) people is a great deal more than is perhaps obvious.

Not really. Partnership. Legal Union. Marriage. I don’t care as long as there’s one set of rules for them across the board so groups can’t work around extending the benefits to the participants in said unions. If your church wants to “marry” (or “seal”) you, then you are married. But the legal term is independent. Though it is entirely possible that I am overlooking a downside to this. It’s hard to take the goggles off.