I agree with this, domain knowledge is underrated. However, sometimes it does take a risk-taking outsider to put several big picture pieces together initially. This isn’t to say one should just stay as an outsider once started. I’m thinking of those like Elon Musk, who have a larger vision and saw an industry as the right fit to make it happen, and then dove deep to learn the domain.

I’m sure there’s something in their diverse backgrounds that intersect in a way that solves a critical problem. For me, the thing that’s missing in their process is actually building a prototype and getting in front of a user to validate what they think they know.