You're 100% correct. My WAG (Wild A$$ Guess) is that the OP is on the fence with an AQ move-up bid/bidding amount which is why it was asked the way it was
To oversimplify it as much as possible, how does one rate the MDR on a scale of 1 to 10? Whatever that number is, add a 1 to it and then you have your Blu rating. It's a slightly elevated MDR experience which is my personal opinion based on actual dining experiences, talking to passengers on board, and reading on here, There are some additional benefits like no extra charge for multiple lobster tails, and on some ships, you can order anything off the MDR menu but not everyone will utilize those benefits