It's hard to find anything that hasn't already been posted on one of the tumblr blogs, but here's some final info about Betrayal's box office in NY: https://www.nytix.com/news/broadway-show-ticket-sales-analysis-chart-w-e-12-15-2019
Scroll down to the text after the week's list. The article says the show had a "modest" box office, at an average 81% of capacity. I wonder if that's because it was only six years since the last NY revival, which had greater star power with both Daniel Craig and Rachel Weisz, or if there were other reasons.
I don't agree with the article's take that the production split critics down the middle. I felt like more reviews were positive than not, and the ones who didn't like the show either didn't like Pinter in general or relay didn't like the staging (but still praised the cast's performances).
I did go to see it, if anyone wants to discuss....