The National Theatre does not have any obstructed seats. If parts of the stage cannot be viewed from one’s non-obstructed seat, hypothetically because one is sitting at the back of the mezzanine section from which the balcony severely overhangs, it is the viewer’s own fault for not embracing their unique viewing experience.

Given their customer relations, perhaps the National Theatre’s inability to recognize obstructions should be seen as unsurprising.