" Why list them as Christensen?? "
Because at the time that he listed them, that's what the resource he had said that they were.
If someone hasn't been around the forums for the past few years, how was he supposed to suspect otherwise? It's common knowledge to you now. But if BJ has been up there minding his own business in Canada, it's quite understandable for him not to realize that the rug was pulled out from under that ID.