Earlier quoted context omitted.
They're incorrect, and my reply to a sibling covers why in detail. But to reword it: if you think the reason 0 to 1 work is typically a duct-taped mess is because of a lack of experience or understanding from greenfield devs, you'll probably fail at 0 to 1 work yourself. Not that a noob developer great at selling has never landed 0 to 1 work, crapped out a half working mess and left with a newly padded resume... but…
You must be “that person” who joins a team, creates IMPACT!!!, reaps the review-time award, and fucks off to some other new team to do it all again before any of the difficult maintenance issues arise. I've spent far too much time cleaning up after people like that to ever tolerate it again.
You'll figure out what you should have built after it's been used in prod for a while. Possibly years.