Like a company discontinuing a model of Bluetooth speaker or size of tire, as if the implant isn't a permanent part of their patient's bodies. Just leaving a small division that supported existing users, even with just spare parts, would not have been cost prohibitive.
It sounds like the suits demanded profitability and literally left them customers in the dark. I wonder if in the coming years and more and more biotech implant companies come to market some will be required for long term support. Maybe their relevant IP becomes public domain if the device is not "supported"?