This play was first produced in 2009! It was written by Mike Bartlett, who has subsequently gone on to immense TV success - Dr Foster, for example. He’s an enviably efficient playwright.
You could always read the play script before going to see it - widely available. It’s also been produced on the radio - don’t know if it’s still on iplayer. The play itself is probably more interesting in its form and execution than in its subject matter - but it’s very popular so I can see why it’s being revived.