This "hospital capacity" bullshit is a total red herring no one would accept for anything else.
Imagine if schools said "PLEASE, we're at capacity, stop having children and shut down all dating websites and bars until we can get enough staff!"
Or if tire companies demanded the government stop people from driving because it was hard to get enough people to put new tires on people's cars.
Remember that old stalwart of boss's desks in the 80s, "Poor planning on your part does not constitute an automatic emergency on mine"? We need some of that attitude back, pronto. These hospitals have had two years to prepare. In that time they could have trained an army of ICU/critical care providers. They chose not to and they want to lay the blame at the feet of people who had no say.