Hung at room temperature overnight? Nah, it's typically hung in a refrigerated and ventilated cooler (before it's cooked)... Never seen a recipe that says it should be hung at room temperature.
Whole article is based on a strawman.
Edit: Even the "evidence" of healthcode violations used in the article is of hanging the COOKED duck in the window, not the raw duck. Restaurants (yes, even Chinese ones) use a cooler to hang the raw duck because the ambient temperature is way too hot.