So... the majority of Hospitals have no plans of leaving the medicare advantage system.. and a slim majority (less than one in five) are leaving a network?
That's the glass half full observation. Nothing wrong with that approach as long as the policyholders know which hospitals will be non-par for their plan, and know it in time to switch before the end of AEP.
I presume brokers will inform their clients that live in the catchment area will inform their clients about what is happening and give them an opportunity to change to a different plan.
When a hospital drops a plan from their network you can hear the panic in their voice, especially if the are in the middle of a treatment regimen.