I have been taking this whole Hospice scenario seriously. ED seems like the kind of person who would like company, and I'm thinking they even have internet there, since it's a big place.
And she likely thought she could "book" the trail, especially since looking at it from above, it would look easy.
ED was carrying a pack, though judging from the way it sat on her back it wasn't that heavy. A lot heavier than a daypack, though. Maybe 22-25 pounds max with water. She only needed 3 days of food (typically, x2 pounds), a spare meal, her ultralight sleeping bag, tarp/ground cloth, ultralight mattress (a design that was going to make her sleep freezing cold, by the way), micro pot and stove (in photos), a lighter, raingear (top and bottoms) long undewear, a layer or two if she wasn't wearing everything, the weight of her pack.... This would have slowed her down, and might have caused her to underestimate how much time she'd take to get to somewhere like the Hospice. And it's steep out of the bowl where the Refuge is.
I am not convinced she took the tent. I think she'd established for herself that she could bivouac if necessary a few days before. Otherwise, she'd be in a building like the Refuge.
Also, if she didn't take more layers for her legs than those skimpy lycra yoga pants, she'd get very cold. She could have fallen and ripped them. Yoga pants have no reinforcement anywhere. They're for indoor yoga, not hiking. (You can get leggings for hiking, but that's not what she had. ) Then what?