Because he evidently took the drug as soon as diagnosed the infection was limited to the URT, as evidenced by his clear lung x-ray.
But the BBC, SBS and Al Jaz say - "Bolsonaro gets his little flu" and ignore the fact that he is vindicated. He only spoilt it by saying "thanks to God" instead of "thanks to HCQ".
We don't have to like or support Bolsonaro to accept the truth of what he says about his own infection with this virus and how its danger can be minimised with this drug treatment. What's not to like? The price? $5? The risks? 60 years, suitable for pregnant women and infants...