Removing the page entirely is basically a non-starter. And the page nav can't be changed to not show the page.
If we redirected you back to page 6 in this example, that would be very confusing to me as it would look like page 7 couldn't be accessed.
Right now, I think this behavior is about the best that can be hoped for (in a general case). I'd hope that with this, the "show ignored content" link would be more noticeable, giving an idea of what was going on.