purgance

This is an interesting observation, because it seems to imply that the underlying issue is either the implementation of the fix, a problem intrinsic to the AoA sensor(s) (ie, a hardware problem), or a combination of the two.

Is there any indication as of yet which if any of these is true?

That’s the software issue he addressed.

This would still require the pilots have the ability and knowledge required to disable MCAS, which if I’m not mistaken is not standard either.