jbird5 said: "Don’t forget they have many iterations of this show running all over the world. Not to mention TV specials. The thing’s a goldmine. They could afford to subsidize this production to keep a US/Broadway presence."
This is key.
From the show's Wikipedia page:
"The Play That Goes Wrong has been translated and licensed for productions in over 20 other countries, namely China, Hungary, Poland, Spain, Greece, Israel, Scandinavia, France, Italy, Brazil, Germany, Belgium, The Netherlands, Argentina, Uruguay, Turkey, New Zealand, Hong Kong, Singapore, Philippines and South Africa."
There is currently a long-running West End production, along with UK and Australian tours. This show and brand are literally beloved around the world. Seems fitting that producers would be confident the show could find an audience and run here.