I really love this idea. It kind of sounds like what Camus tried to do with The Stranger, but Pinter is taking a different tack. Instead of showing us a strange, unfeeling man confronted by a very mundane setting, Pinter is placing a normal man in the most extraordinary setting, a setting that could not exist in the real world. This article seems to be saying that Pinter is making the environment of the play, supported by the zany dialogue, the plot holes, and the inconsistencies in characterisation, to really show us the absurdity of a meaningless universe, rather than having us try to sympathise with a character who makes the realisation that, 'oh, everything is meaningless.' It's like Inception: Pinter is trying to plant that realisation of meaningless into our own heads.
On the other hand, I really like some pieces of art that eschew plot and work as mood pieces, like many of Wong Kar-Wai's films, or Sofia Coppola's Lost in Translation. It's all about the feeling of the audience, as the article says, and at the end of the day, I firmly believe that an audience will recall the feeling during a play, book, or film much more strongly than what occurs during the plot. And this might be contrary to what Bea wrote, when she said above that she didn't think the audience would have that strong an emotional response. Maybe it's not emotional, but something deeper...like a lingering feeling, a sour taste in your mouth, or a lightness of spirit.