This. I work on a website where a new ui was rolled out every 2 years? Why? We (the developers) finally figured out it was because it gave the business people work to do that was more interesting than what they were really supposed to be doing. They got to go to all these catered meetings with 3rd party design consultants. They got to report to their higher ups that they were doing all this very important work. And every 2 years they could roll out the new ui to great fanfare while patting each other on the backs. It had absolutely nothing to do with improving the experience for our customers.

The worst part was, often functionality that was well loved was scraped because there wasn’t time to work it into this redesign. It turned out they would do that on purpose so people would complain so they could go to their higher ups with complaints in hand to justify budget money for a new round of ui design work. Rinse repeat.