I think your booking a Cat 8 guarantee, which provides for Cat 8A or better. What ship are you booking? I think most of the obstructed view balconies are on Fantasy-class ships, but they don't have a Cat 8 to my knowledge.
obstructed view balconies. If you have a CCL book it list the cabins with obstructed views and what decks. AS Triumph and Victory they are on 6B and Spirit class is 7A and 2 rooms that are 9A upper deck room 5241 and 5243. Fantasy class is V23,25,27,34,38,42. None listed 8A or higher. You shouild be able to go to the CCL site and pull up the info on the deck plans.
While I've never been on a Legend-class ship, looking at it's picture does warrant concern. Most obstructed-view balconies have their view obstructed by the lifeboats. On Conquest-class, this isn't a concern cause the balconies are above the lifeboats and extend out beyond the lifeboats. If you look at a picture of Legend-class ships, the balconies behind and directly above the lifeboats don't do this. They are recessed behind the boats while the balconies in the other sections of the ship extend out further. You may want to book a specific cabin number rather than going Cat 8 guarantee on this class ship.