I think Princess should be doing something to accomodate such a large group, even if it is assigning us to "anytime dining" at the same time as first seating. However, my point, which you and Princess seem to miss is that most of their customers seem to want traditional dining and we are not pleased in the way they are forcing the other on us. We just got off the Regal which, thank God, only has one dining room so they couldn't play this PC game with us. And because of that, we even tipped the old fashioned way which is my preference.
Princess better wake up and listen to their returning customers before they start migrating to other lines.