USDHKD and the "problem" emerging market countries in 2018

2018 saw a rolling bear market in emerging markets, with a lot of EM currencies getting crushed vs. the dollar. Why has everyone forgotten about this? The issues are systemic, and the buy-down of the USDHKD peg only kept the eurodollar market functioning for long enough to forestall some further pain. Now that the peg has been hit again, we are starting to yet again, see renewed emerging market problems.