So, we think we're unique - but we're not. We think we're happy - but we're not. We don't realize this, of course, because, in the words of one of Martin Crimp's cute songs... "We don't go deep." The fact that this show about superficiality is itself relentlessly superficial makes for a fine irony. I'm assuming this was deliberate although it may be giving Crimp too much credit. In any case it was not a good idea.
At the risk of being ironic that's a superficial reading of the play (or was that deliberate, in which case it was not etc. etc.......)