So they hit a mid-life crisis, and rather then take small steps they read the bible and move to an island to start farming, I wish them luck.
People change countries, partners, careers not because of one book. This is usually the last drop. They were long-term unhappy, yearning for something else.
And as this guy wrote, he was sick, he was burned out. I suppose, he wasn't able to limit his screen time, it was all or nothing. Sometimes, those big changes work better than incremental steps. 20 years ago, I went from a pack of cigarettes a day to zero. If I went to 19, then 18, then 17, I might still smoke to this day.
I have an acquaintance - not into IT at all - that did something similar, went to work in a solo eco-farming project (no fertilizers, just let the soil rest, no pesticides obviously, I'm not sure if he went as far as no artificial irrigation either though) and now after a few years he decided he wanted to come back to civilization and he is now working in a factory, in an assembly line.
As other commenters have pointed out, this does seem like going from one extreme to another - especially once religion gets involved.
I wish Dylan well, though I do hope some deeper, more moderate self reflection takes place at some point.
As an IC, you're basically geriatric as soon as you hit your 30s.
/s