Yes, Salty Dog, they seem to be playing carefully with semantics on this point. It should confirm what I've been writing about lack of legal authority, and it also confirms there is no other acceptable alternative since they removed the toilets.

From the Inyo NF Mt Whitney Trail Webpage
Dispose of Waste Properly

"At Mt. Whitney, the only acceptable way to dospose of human waste is to pack it out. There are simply too many visitors in the area to use other common waste disposal methods." [typo is theirs]

We can either voluntarily carry poop in a WAG bag, or carry poop in a WAG bag voluntarily, your choice. confused