This was something citied by David Caon in Feb 20190 during a VR walkthrough session of the lounge: I got to that area down the back which has the banquette seating, just after where those solo seats are ranked along the left side (if you're facing this end of the lounge, facing away from the dining room) and he said the idea was that it could be turned into a VIP area for F and CL. Pic of concept art attached for reference, although the nook now sports a bit more seating and a table, I think?
Anyway, this wouldn't be an ideal place to sit and eat, I think this needs to be more a section of the dining room proper, and maybe this area as well so that post-dining once can decamp with a coughtail etc, but that could simply be too much of an ask given space constraints.