Just eyeballing the chart in the story, it's still up 10% from January 2015. That's not a bad return. This looks like a correction of a ridiculous overvaluation spike to me.
No market is predictable. That is why you don't try to do it. Invest regularly, i.e. dollar cost averaging. The couple who invested their entire savings in one shot during an obvious run-up made an all to common emotional mistake.
OC I haven't studied the situation there in any depth.