Last I heard, which was a few days ago, they found that the drug was effective on COVID-19 patients with mild/moderate symptoms, but didn't help much if they had already progressed to severe symptoms.
But even if that turns out to be true, if this could be used to stop the progression into severe territory (much like antivirals acyclovir, valacyclovir, and famciclovir are used to do similar for shingles), then everyone who gets this treatment early will be in MUCH better shape. COVID-19 infection will be no longer be a situation of, "Fuck, I hope I'm not one of the unlucky ones, guess I gotta wait and see" like it is now.