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Skimming the article I think he got caught by one of the killer issues that is worth discovering early: "Are you relying on other people's data, and can you continue to rely on it".

Scraping based ideas hit this issue. Ideas that attach to a single platform API too: X (formerly Twitter) killed many startups who relied on it's API.

This probably generalizes to "What are your dependencies, how risky are they?"

Which then covers people who rely on SEO rankings, or a single Instagram account for their entire business.

It wasn't about building VS shipping. It was more the deployment maintenance and tech support wasn't the fun part. In addition to absurdly high api costs for what was supposed to be simple and low cost.

Afaict he is an employee at Rewind.AI, not a founder (which is what “is behind” makes me think, and is heavily implied by your comment).

It says he is a cofounder on his about page.

Gotcha, I must've missed that.