You’re right of course. I personally had 2 things in mind in being obsessed with which route they took.
1. I thought the distance they traversed would make a difference to the theory some have proposed here of murder/suicide (which I don’t subscribe to, but wanted to be able to discount with evidence). I personally don’t think someone would hike ~7 miles (ie most of the loop) to finally die or kill someone.
2. The direction they took does, to me, help reframe some of the discussion about their preparedness, planning, parenting, etc. If they really planned only a short hike down SL & back up, that means they apparently left at a far less unreasonable time of day, & with apparently enough water, & yet something went terribly wrong. Maybe it was the dogs paws, maybe dad got a strain from the carrier, we don’t know. They seemed to be a happy & loving & health conscious family, so it’s an added sadness if we are left thinking bad things about them re their choices if it’s based on faulty information. JMO!