This isn’t a prosthetic that was remotely disabled, this is failing hardware that doesn’t have support from the original company which is in the process of going bankrupt.
I get where you’re coming from, and agree. Prosthesis and health devices should absolutely not be remotely controllable by a company. But you can’t really help a company shutting down.
And I highly doubt there are any open source implants which help sure blindness that are ready for prime time.