Without MAJOR changes elsewhere in the healthcare system the writer is correct. That which cannot continue indefinitely will not, and healthcare costs have been rising exponentially (something which cannot continue) for many, many years. Third party payment (insurance or government), opaque prices, obscene cost-shifting, malpractice suits, artificially limited provider supply are all significant factors above and beyond the demographic gorilla in the room.
I say we start by abolishing congress' healthcare.