It's worth noting the study consisted of a non-randomized population of just 255 people, on which nearly 80% died anyway. Some quick math, assuming even distribution between non-HCQ and HCQ population would give about 127 in each group. Of those that survived, we have about 50 people total, which would leave us with about 17 or so who survived without HCQ vs. 33 with it. So basically, it's another study looking at an extremely small non-randomized population with very low numbers. I haven't delved too deep into the actual numbers, just extrapolating based on the very basic numbers, but it's hardly definitive at that number of people.
Edit:. I read the article a bit further; 225 patients received HCQ, however they considered only those who received large doses of HCQ and zinc as having received the treatment. Basically, 37 patients received doses above 3 grams for HCQ and above 1 gram for zinc, and of these who did 40% survived. The remainder of this study group received less than 3 grams and 1 gram respectively, and had a 16.5% survival rate. This looks promising, however I again refer to the small populations involved.