Probably something to do with promotions and career incentives. You need to design something novel and complex to demonstrate your value to the company and move

Probably something to do with promotions and career incentives. You need to design something novel and complex to demonstrate your value to the company and move ahead. Simply leaving things as they were doesn't demonstrate that you're actively creating new stuff as a project manager/engineer/designer. Also these designs tend to look good and futuristic and innovative on PowerPoint slides and tend to impress higher ups. Similar to how introducing new tech and new dependencies, complicated architectures etc. in a software project seems to be rewarded as long as you jump ship quickly enough before the mess you created blows up.