Wow this person is projecting their ignorance of the decades of academic HCI studies and industry best practices, including UX design and research methodologies for bringing the user into the design process (to understand their needs) and uncovering user insights from testing designs early on in the design process. Would love to see some concrete examples of redesigns that support the author's argument because I can provide plenty that prove the opposite which simplified user flows and introduced better conceptual models/interaction design patterns that were vetted through user testing.

Maybe they've only worked with smaller teams or visual/graphic designers. Any large organization with a competent UX team can easily dismiss a majority of their claims by exposing them to the UX design process.

"Every change that you make to the product after I have bought it makes it more likely that I will leave your product and find something else that does X instead, because the cost to me to learn how to something different in your product is now not much different than the cost to learn how to do something in a different product."

Product redesigns should optimize and make product features more efficient/simple to use for the core audience (user personas [1]) and support their experience in achieving their end goals (journey mapping [2]).

(Downvoters- would love to hear your perspective)

1. https://www.nngroup.com/videos/personas/

2. https://www.nngroup.com/articles/customer-journey-mapping/