I have seen several people conclude that this hiker couldn't be lost or stranded because some of her gear has been found. Not true. Lost, injured, and/or panicked people discard gear all the time. Once their thinking gets cloudy anything is possible. Water, too heavy. Leash; let the dog go for help. Etc. How many people have seen hypothermic patients strip their clothes off in sub-freezing temps because they feel "hot"? I have.
I agree it doesn't sound good, but please let's not jump to conclusions.
If the facts are correct only some of her things were found I believe. On a trail she was familiar with. She was not lost. A trained Labrador will not leave its owner for the most part. No matter how you cut it it doesnt look good.
Skam