If it doesn’t work it is everyone else’s fault? What a nutjob.
Unless perhaps Rossi is going to be on site and look over the “Customer consultant's” shoulder, in which case it's Rossi’s test.
If the big test is simply a repeat of the earlier demo then the “snakes” can save the plane trip to Italy.
Rossi created the circus, it's a bit late to complain about the spotlight now.