With even the current level of detail available from 3D printing (liquid), depending on how good the files were, a printed kit could blow any other "box stock" build out of the water.
That's hardly a level playing field.
3D printed parts in general are, in many cases, so superior to kit-sourced or traditional resin that there's an unfair advantage there too.
FOR INSTANCE: I have several 1-bbl carbs that were made for me by a member here that blow any other models of the same carbs totally out of the water.
Bill Cunningham has already conclusively demonstrated that spectacular 3D-printed models in 1/24-1/25 scale that are simply untouchable by any other building method are currently achievable.
So yes...some thought as to how to classify models that are entirely 3D, or use a lot of 3D parts, or are original designs (3D printed or not) needs some serious thought.