i would first decide if "Safely" as stated or implied by the articles and charts you are referring to, although the content seems to be focused on the practical aspects of even getting a tire on or staying on at all, were more or less important than experiencing excessive pinch flats or rim damage. they aren't equivalent, IME.

any comment on what i think is safe or not regarding rims and tire combinations, although i have my own opinions, would be useless, but i can say that i wouldn't be very concerned about excessive pinch flats or rim damage, in as much as the remedy is trivial.