Fringing/Chromatic Aberration

How is it that in this day and age of AI where you can replace objects, we still have fringing correction that just turns things grey? Why are we not matching the surrounding colour? I understand that without any kind of intelligence, this would likely just result in one side being biased, and likely the result would be no better than the grey or indeed, not fixing at all. But surely with AI, a reliable colour match based on subject is possible while retaining edge integrity.