I think you were very honest and pointed out several items that other people have also noted. It's important for people who did not have an experience that met their expectations to post. Just a few comments, since you said this was your first real trip on
DCL.
1) Until the new menus were put in place last year, there was always an option for what was called lighter fare, which were simply prepared steak, chicken or fish (which was not always salmon). There were many people who shared your opinion about the more heavily sauced and seasoned food when those went away. In fact, on our three cruises, I ordered from that simpler fare menu on more than one occasion. Strangely, if our recent experience on the Wonder is any indication, you can get meals like that in the buffet (topsiders or beach blanket) which serve casual dining in the evening. Perhaps, DCL is listening and will restore it in the near future. Also, you can usually get your server to bring you a meal from one of the other rotational restaurants (unless its a theme night), which broadens the selections you have.
2) The "powdered eggs" at breakfast are almost certainly not "powdered" but the liquid commercial mixes. In either Lumieres or at the buffet, you can have them crack eggs and prepare them anyway you want, but you have to know to ask or go to the omelet station in the buffet. I have had the eggs benedict at Lumiere's and they are definitely freshly poached eggs.
3) Although it is not on the Navigator, you can go to the buffet for your departure day breakfast up till about 8:00 am. However, there is no omelet station that day, so you it would not have helped with your request for fresh eggs.
4) I have also experience the beverage situation you described with the server getting huffy because you didn't ask the assistant server (who could not be found). Not sure what to do about that except to note it on the comment card.
5) Small point: The Big Red Boat never stopped at
Castaway Cay, which didn't exist until the
Disney Cruise Line was started.
Please come back in the fall and tell us how your B2B on Carnival went.