Personally, I think it's a problem of trying to cut corners. If you accept the full mathematical complexity of your design, you'll be forced to create a tracta

Personally, I think it's a problem of trying to cut corners. If you accept the full mathematical complexity of your design, you'll be forced to create a tractable design. Many people create designs that would be intractably complex if they bothered to try to understand them, but they don't try to understand them. They just hope. They'd rather spend 10x time debugging and making random adjustments to make errors less likely than spend x time creating a design that actually works.