It's already been politicized, it's too late. The minute that politicians started advocating for a treatment before there was any scientific backing, that ship sailed.
Also, this study does NOT suggest that patient outcome is improved by 10% or more. Not in any way. Fewer patients died within the timeframe of this study, but more patients on the drug experienced ARDS; not to mention that 9 patients had to be removed from the study due to cardiac effects of the drug.