The lengths people go to not to make walkable cities (and insulated buildings, fast trains.. you know, all the stuff that actually exists and works)
Flat design stands against every single principle of proper design. All I can hope is 40 years from now, there isn't some "retvrn to tradition" BS where a new wave of the youth decide we should return to the "cool classic style of the 2000s-2020s". Let me be an old man and die with the software around me looking beautiful.