Probably not. It's an interpretation that the word "driver" in one particular legal context does not necessarily mean a person, not a decision that computer programs are people.
This simply seems to be (without the text of the letter, just several news reports) an interpretation of law which is a basis for NHTSA to subsequently rewrite vehicle safety equipment requirements to support fully autonomous vehicles at the federal level.
Because of the way legal definitions are context-specific, it doesn't necessarily mean anything to anynof the other laws regarding drivers, much less anything outside of that domain.
This simply seems to be (without the text of the letter, just several news reports) an interpretation of law which is a basis for NHTSA to subsequently rewrite vehicle safety equipment requirements to support fully autonomous vehicles at the federal level.
Because of the way legal definitions are context-specific, it doesn't necessarily mean anything to anynof the other laws regarding drivers, much less anything outside of that domain.