I wasn't expecting an ID or anything, but wondering if any additional remains were found. It could easily be what you say, but that's why it seemed so odd to me that they called the dive team out. It seems a bit extreme under the circumstances.
They probably don't get much practice in the desert; plus, they probably didn't know what they were dealing with.
I hate being left hanging. Like the woman's body found in Cle Elumn WA, or the one in Wyoming.