Interesting point.
I love my theatre but also detest some of its smug pretentiousness. I saw Aeneas Faversham Forever by The Penny Dreadfuls in Edinburgh, and they reinvented the medium for me.
Though it had a through-line, each scene was like a grotesque sketch ending in a belly laugh to carry the audience through the blackout. By far and away the most I have ever laughed.
Ayckbourn is wank though...