The term 'design' is taken differently here, with more emphasis on art than engineering.
If you're engineering a piece of work, your design will surely be better if it is minimalistic. But if what you mean by 'design' is an artistic approach, certainly minimalism is not a goal.
If you're engineering a piece of work, your design will surely be better if it is minimalistic. But if what you mean by 'design' is an artistic approach, certainly minimalism is not a goal.