Yes, that would be helpful to know her behaviours.
Not only her toilet behaviours, but also her typical pace and style of hiking. Did Pattie generally drive forward at a good speed with no distractions? Or did she usually go at a slightly slower pace to take in her surroundings? Did she take many/any photos? How fast was she likely to make it to the Miura peak?
Did she typically stop to help others? or was she reticent and shy, staying to herself? Her family recently indicated that it's possible she could let her guard down to help others.
Her husband told in an interview that he knows all that after all the hikes they did together. He hiked the trail and he knows where she would have stopped to take a picture.
As for Pattie's toilet behaviours.... should we really discuss those after all the searches that have been done already by professionals?
In Japanese culture, good manners are extremely important and at any time, one should strive not to give offense or cause distress.
The presence of toilets along the trail, even on lone mountain passes, is self explanatory: Use those.
Japanese culture is not about YOU or how YOU feel, but about the rules of society and preserving harmony.
Hope this helps.