Criminy
They may as well just say, "Uhhhhh....?" and let it go at that.
Once again, Mars doesn't meet expectations. It has it's own ways that haven't been figured out yet. Perchlorate is an interesting finding if it can be confirmed. But what happened to Oyama's oxides and superoxides formed through atmospheric and UV interaction with the soil and which form polymers and mimic biological signals in the presence of water vapor?
Oyama has not been disproved... yet.
On the other hand, his elaborate hypothesis may not be necessary after all.