I can obviously relate to the author regarding a deteriorating work-life balance, and a lot of us have become burnt out or at least experienced intense stress at work. Nothing in this piece makes me believe that she has fixed the problem, and it's not healthy to continue until you break, dropping everything and going on a "walkabout" to some distant place for awhile to pretend like you've solved a problem.
I found it telling that she claims to be a values-oriented person, and yet also a self-proclaimed atheist. People like her should actually try finding themselves again through religion. I'm not even suggesting a specific religion. You don't have to be a believer to gain value by setting aside time to reflect on your life, values, relationships, and why you are here. It also helps to associate yourself with other people that are searching for answers to these things. The lack of religion in people's life is a big contributor to the feeling of a lack of purpose and it allows you to become increasingly unbalanced in life as you prioritize work and material things over what's really important.