I was there tonight. Bob Martin and the director were in the audience. Show was sold out - barely. It was still on TKTS 30 minutes prior to show.
No curtain call speech. Audience wasn't overly energetic but gave entrance applause to everyone. Show was never "stopped." Kind of a dull closing night, compared to other closing nights I have read about.
I'll review the show tomorrow. It was the first time I had seen it. I will say this: it closed too soon.
"The Spectacle has, indeed, an emotional attraction of its own, but, of all the parts, it is the least artistic, and connected least with the art of poetry. For the power of Tragedy, we may be sure, is felt even apart from representation and actors. Besides, the production of spectacular effects depends more on the art of the stage machinist than on that of the poet."
--Aristotle