This is exactly what we're talking about. LOL
Unless the stories changed, the lady hooked a fish while she was wade fishing, slipped and fell her. Her friend ran in after her and drowned trying to save her. I don't believe they were ever in a boat. I've fished the Chek with the people from this particular guide company and we drove to the river for the walk and wade.
If you're bashing on people for not wearing a life jacket while walk and wading, then add me to your list (and I'm more likely to agree with Headscans number of 1/8 of 1%). Using your logic, how far do we take it? Not stepping into the river even if you're wearing PFD...there's still risk involved there.
I don't blame the guide or individuals who passed. It's unfortunate but you can't take every risk out of being in nature. You take what you deem as reasonable precautions and go out and enjoy the day. In my mind making clients where aPFD while they are walk and wade fishing is not the way to go.