Is it a negative when the 2012 Honda CBR250R's engine overheats because the airflow is restricted, and why?

Is it a negative when the 2012 Honda CBR250R's engine overheats because the airflow is restricted, and why?

Engines are made of different metals, they expand at different rates, since they are securely attached, one of the components will warp, your gaskets will fail, smoke and great expense follow.