It’s possible that the incompleteness is the point. It’s possible, too, that The Ally would still come across as unwieldy even if it had premiered one year ago, or five. As the more fraught second act continues, the everyone-gets-a-turn speechifying starts to crowd out the cathartic laughs that punctuate the serious business back in the first act. (When a few of those sharp, petty lines return toward the end, the relief of actual laughter, however quasi-inappropriate, is palpable.) The pre-existing relationship between Asaf and Nakia sometimes feels like a writer’s conceit more than something lived-in, with perfectly illustrative anecdotes related at key moments. Maybe that’s an inevitable byproduct of a play that dedicates so much time and energy to the act of debate. Even if the pin-drop intensity of The Ally dissipates quickly afterward, there’s something admirable about a play in which so many of its characters appear ready to make a didactic case against its very existence.