Really? No, it is not "nuff said". This retrospective analysis is not definitive at all. As the authors themselves say:
"Randomised clinical trials will be required before any conclusion can be reached regarding benefit or harm of these agents in COVID-19 patients."
And also:
"Our study has several limitations. The association of decreased survival with hydroxychloroquine or chloroquine treatment regimens should be interpreted cautiously. Due to the observational study design, we cannot exclude the possibility of unmeasured confounding factors, although we have reassuringly noted consistency between the primary analysis and the propensity score matched analyses. Nevertheless, a cause-and-effect relationship between drug therapy and survival should not be inferred."
It seems like you immediately jumped on the headline and are inferring indiscriminately.
And I also note that I don't see any mention of the use of zinc, which is increasingly being seen as a necessary component of a HCQ regimen for covid-19. So, I'll continue to keep an open mind on this, and consider all available data.