Actually, I can see the efficiency in small hospitals being ER only, stabilize the patient, then transport to a large hospital for warehousing.
When I first retired, I considered moving to less congested areas. I started comparing ACA plans by city. Grand Rapids was almost as cheap as metro Detroit, but coverage in Kalamazoo or Allegan was significantly more expensive. Allegan is dinky, but Kalamazoo County is home to some 260,000 people, with two hospitals. You would not think Kalamazoo was “rural”, but evidence says, using either of them costs a lot more than hospitals in metro Detroit.
So, that was one more reason to stay here. As luck would have it, my doc is employed by Beaumont Hospital, so I have been registered on their patient web site for years. When the covid vax became available, Beaumont announced that they would be selecting eligible people from among those registered on their web site to be invited in for a jab. So many people tried to register, they crashed the site. Being already registered, I sat back. A few days later, I received an e-mail that, if I wanted to be eligible for the jab, confirm my contact info on the web site, which I did, A few weeks later, I received an e-mail invite to make an appointment. No huge line. No travel to the far side of the moon for a jab (my neighbors drove to somewhere in Ohio). “Big hospital” took good care of me.
Steve