Maybe other news outlets are not reporting it because it is only one case and not official treatment. But they did report testing of such drugs.

https://www.latimes.com/science/story/2020-02-13/fighting-covid-19-with-drugs-targeting-hiv-malaria-ebola

https://www.theguardian.com/science/2020/feb/20/doctors-hiv-ebola-drugs-coronavirus-cure-covid-19

https://www.vox.com/science-and-health/2020/3/4/21154590/coronavirus-vaccine-treatment-covid-19-drug-cure