I’m not sure what you mean. Of course it’s never happened because we’ve never done it that way.
If you’re saying that if you go back and calculate previous elections, then it never would have made a difference, that doesn’t mean it could not happen. Growing up I learned that there was only one time in history that the popular vote didn’t match the EC, but now it’s become a constant threat. If it becomes a viable path then eventually it is bound to be exploited.
What you are talking about simply isn’t functionally equivalent to just straight up popular vote, for the reason I described. Votes are not worth the same amount in different places.
When they announced the ads it was just the incentive I needed to quit Prime totally. I don’t miss it. I already was wary of buying from Amazon due to the sketchy sellers and fake products, so I’m glad buying my stuff elsewhere except when I can’t find something somewhere else, which has been rare.