I would say this is an important part of the product-market-fit discovery process. Sure, your comment holds true for well established products with a loyal customer base, but for an earlier stage product this rapid iteration process is quite important, especially from an onboarding and ease-of-use perspective.
Yes, this. I never redesign things for sake of redesigning. But being solo developer bootstrapping my product, I don't have a luxury of testing some concepts deeply internally or publishing well-optimized components. And when I see my customers struggle, that's clearly a signal, that's something in UX is wrong. Just today we had to explain one of our customers how to proceed with our ISMS workbook (Clauses 4-10 from ISO 27001) - initial design proved to be bad approach, I now know how to change this. And Claude Design is great translating my thoughts and suggestions into something, that's consistent and better, than I could design it in predictable time.