This was an awesome room but I'm looking at it from a fire safety/evacuation perspective. Most codes require a primary and secondary means of escape from a room, otherwise it is deemed a confined space which has a different set of strict requirements.
For passengers, it looks like there was only one way in and out which is via the main entrance off the A Stairway landing on the Upper Deck. There is a set of crew stairs behind the bar but would assume that unless guided there by crew, passengers would not know to take them (or find them).
Most troublesome, there doesn't seem to be a way out of the port and starboard alcoves except the way you went it - in other words, one could be trapped in there if a fire broke out between the alcove the entrance.
There are the port and starboard hatches to the weather deck area in front of the Lookout Bar but I would think that it would be difficult while underway to use these doors, especially in high winds and seas (the doors open out).
Don't get me wrong, I love this room and wish it never went away. But would it be able to pass a design review from a safety standpoint today?