This also happened multiple times the last ten years in for example The Netherlands. To remedy this hospitals move patients around between them. Is not unusual

This also happened multiple times the last ten years in for example The Netherlands. To remedy this hospitals move patients around between them. Is not unusual during peak months of the year. If you Google around (and set the time frame to 2001-2019) you find a lot of press articles on overloaded ICU's, temporarily closed wards, patients stops, postponed surgery etc. In most Western countries the health care system has been increasingly strained. And even a slightly worse flu than normal would inevitably have resulted in severe problems. Even without covid-19.