The other reason MVCSP wants to see a higher intensity alternative studied is that during the public workshop process everybody said "YES! We want our city to be a city of villages where people can walk and meet many of their needs in their own neighborhood!". In order to create these cute, walkable neighborhoods with shops, homes, transit, etc, where people get out of their cars, we need a certain number of residents to support these services. Economic analysis shows that we might not be able to hit that village target with the current densities.
We think that the preferred alternative of the General Plan is pretty gosh darn good, but if a more intensive alternative would lower our environmental impact, we want to know about it!