Kathy, I wondered the same a few weeks ago (and walked off as usual). Next day I met a guy/guide named Jason? who was discussing anchor replacement with Paul Curran; I brought up the new Betty wires, and Paul said it was a "french weave" and is safe. Jason said he knew who'd been installing those, and intended to have a word with him.
I try to keep an eye on the Urusla anchor, but haven't been up there yet this year. Anyone?