I agree that it is not the end, and that for some people it might do more good than harm. But the study clearly indicates that for most people it does more harm than good. Therefor, as of now, It shouldn't be taken by anyone for Covid treatment until those further studies you describe are done.
Even then it will likely only be used for a small subset of people that get it (ie people at very low risk for heart conditions). It will never be a widespread treatment/cure.due to the side effects.