This is not really a correct way of looking at it. Oil is going to travel through the engine at the same speed regardless and therefore spend the same amount of time in it. Whether it is in the pan or in the filter really doesn't matter, but with a larger filter you increase the overall capacity of the system, so it will take more oil to fill the system. Therefore, each drop of oil will spend less time in the engine (correct) but there will be other oil to spend time in the engine, actually increasing the longevity of the oil (though a negligible amount).
Hey... it's New Years Eve- let's all get drunk and have a good time, and think about what we can do with out tractors in the new year!