This wall seems to belong to a later phase of Room H-7, part of a reconfiguration of the space along its southern limit; it is aligned with wall 7329 to the south, across the piazza, which might suggest that it belongs to the 'trapezoidal building' phase, perhaps serving in part to frame the hitherto difficult to understand space between Rooms H-8/H-8 and Room H-19.
View from east
View from north
View from west
Area south of H-7