Article is from 2014.
FWIW, I've been running near-barefoot for almost a decade without having to take any significant breaks for injury. I'm in NYC, so I run on cement, year-round, usually 20+ miles/week. I'm in my late 40s.
The best lesson of running barefoot is simply listening to your body. My goals are to feel good during the run and then to feel good afterwards. If things start to hurt, rest a few days. Nearly all running-related injuries are overuse injuries.
Mainstream running culture often has terrible advice. Don't try to run through pain. Anti-inflammatories can be helpful after long runs, but please do not take painkillers _before_ a run, pain exists for a reason.