What in the hell are people with brain implants going to do when they stop supporting their hardware or keep additional features behind a paywall. People would be forced to pay whatever the company wanted.
This is ripe for human rights abuse on a level we have never seen before. Imagine being locked out of your own body. Without important safety guards and laws to protect people it would surely cause untold suffering.
Well, one can design and make and test implants that’ll still work 50 years after there’s no more Elon.
But! Today’s “progress” is about increasing functionality and performance, not reliability. And such implants will be made only when there’s taboo on unreliable stuff in such critical areas in 3 different dimensions - company getting murdered legally is the first, its management getting murdered physically is the second, nobody in their right mind buying such is the third.