NMS made about $40M on Steam alone. So figure $25M on the low end after Valve takes its cut. I know that the PS4 version sold a lot as well. Their rep is gone, but most comparable indies don't see that much revenue ever.
They definitely got their pay day.
For some reason though, their bad showing has made negative waves for other indie developers, because I swear I can't look at a news article, twitter/forum thread without hearing about how any promising new game "might be the next NMS!! be weary! NMS looked good too!".