In general, you shouldn't be passing in a scenario that requires you jumping over ~10mph over the limit. And if you can see oncoming traffic, pretty much at all, you should probably not pass.
However, I’m so glad I live in an urban area now where such driving skills aren’t really needed much anymore. I’d defer to people living in rural areas that do this many times a day.
That said, I underline again that I think a system that impacts throttle at merely 1 over the limit would be a bad idea.