Two decks below Baja Deck is Dolphin Deck and all the cabins are mini-suites and the balconies are considerably larger than the others and stick out farther.
If you could post a link to the deckplan that is causing your confusion I might be able to sort it out for you. I don't see any cabins "pushed out" on Baja Deck on the deckplans I'm looking at.
I think the area I am seeing is actually showing decks outlines below the Baja deck. I realize now the rooms are in color, and the gray area beyond must be the ship outline. Is that correct?
We definitely wanted a "covered" balcony in case of precipitation in Alaska and we decided to go with a BD rate instead of BC for the Baja deck. We have reserved room B718 hoping it will be a cabin without any negative impact.