A lot of the Blender redesign and big features is the community pushing over years to say: “this is what we need” and being shot down till someone finally breaks through. Many features stay in forks for ages because they get blanket statements turning it down until they’ve amassed enough hype in the community. See grease pencil and the 2.8+ redesign.
I would give the most credit these days to the folks around him who are more willing to listen to the community and work directly with them.
Not directly mentioned there is the income they get from selling merch in their store [2]. I guess it's small compared to their other sources of income.