So, just watched the video. It doesn’t seem like taking the money has changed their ideology in any way, since they are still very much anti-capitalist. It does seem like there might be a risk of dependency, but they appear to be pretty aware of that.

What I thought was interesting about the video is that Peter Buffett appears to be vocally anti-capitalist, which is a little strange. This article talks about it in more detail:

Unlike his billionaire father, Buffett is pessimistic about American capitalism. “We are in the midst of a collapse,” he says. He favors the small and local over the big and global, quoting Belgian designer Thomas Lommée, who says “the next big thing is a lot of small things.” NoVo funds think tanks like the Schumacher Center for a New Economics, named after the economist E. F. Schumacher, the author of the 1973 classic, Small Is Beautiful: Economics As If People Mattered. “We’re trying to knit back together the community and the land that feeds us,” Buffett says. “If we can provide a non-prescriptive model, we can spread the word and likewise learn from other communities as well.”