All the RCTs were conducted on already-hospitalized patients or they used hydroxychloroquine only without zinc and azithromycin. Since HCQ+ had to be used within 5-7 days of symptom onset, these trials were doomed to failure. Yet, doctors everywhere (most prominent Dr. Fareed and Dr. Zelenko) found almost none of their patients dying or even going to the hospital.
The Great Fauchino is on record as he considers all observational data as "anecdotal" as not valid, so the rest of the medical community went along. His outsized influence on this and other medical matters cannot be underestimated.