Not trusting the provider of that tech is a damn good reason to be skeptical of something a person (disabled or otherwise) puts in their brain.
It doesn’t have to be a hack, it could also just be incompetence. And judging by Tesla’s software track record, I’m not terribly confident in the overall safety of that device.
Haha, those silly billionaires are just like me! Haven’t we all bought an election or two?