Hi Interest is picking up on one of the 5 main routes up the first canyon . I say five because many of the climbers in the past had a favorite way to go , each required at least 3 rd class climbing and one had a short section of 5 th class but if done in the dark non climbers would not see the drop and was able to do it unroped.
This lead to nonclimbers going up the first canyon and find starts to these various routes and then not kowning where to go so they would get lost, doing damage to the canyon and not making it to Lower Boyscout lake.
Out of this came one use path that has now reduced the damage to the canyon , many people can follow this path and reach Lower Boyscout Lake without hours of aimless wandering.
This path turns out to be faster than any of the shortcuts if you have a pack and do not know the total alternate path.
If the stream crossing are a concern I would think staying on the regular Whitney trail would be a better choice at that skill level. Thanks Doug