As I read through the various posts by hikers on that trail, I noticed that some said that it was better to do the loop in a counter-clockwise direction. Their reasoning was that going 'down' the Flume Slide Trail was dangerous. They thought it was better to climb up it.
It seems that Emily was doing the route clockwise. So she would have to go down the Flume Trail. Of course if she had actually made it that far and she did slip, the searchers would presumably find her not far from the trail.
I'm guessing that she didn't make it that far.
In the YouTube linked below you can see the slope of the Flume Slide trail.