Jo
The problem is at what point do you ensure A/P OFF Automatically if the data it is using is sus?! It would be far more dangerous to allow an A/P system to stay connected if there is any doubt about its abilities as far as correct response.
In this regard, although there are some differences between the big two, the theory is the same, if there is 'probability' of erroneous input and therefore erronious A/P output, disconnect and let the intuitive humans troubleshoot
The old maxim (as far as synthetic flight systems go) "If it looks and smells like a stiff rat, it probably is"