This site also has an article wistfully praising Remdesivir, a proprietary drug with far less evidence than HCQ. I think money might be talking here.
https://www.gilead.com/stories/articles/an-update-on-covid-1...
That statement didn't clearly say whether they were going to donate those that they haven't produced yet. If they aren't donating that, this donation is like a ~10% discount (compared to the ~66% discount I had originally interpreted it in that case).