I think that in any other park, that might be a good idea, especially the motor sports part. However, this is EPCOT, one of the most special and unique places in the history of themed entertainment, and I believe that most (if not all) of the pavilions should be at least somewhat educational and inspiring. I know that World of Motion was definitely kind of boring and needed an update, but Test Track 1.0 is very loud and 90s in a not great way. I think that combining the best elements of all three is the best thematic way to go forward. Also, I think international developments belong in World Showcase. Just my two cents though. I’m not trying to knock on your armchair imagineering at all