Ann: Hadrian X departs Australia bound for Florida, page-67

That would somewhat justify some of the wait.
It's more likely though in my opinion that there was a combination of factors, such as as Timboc mentioned to improve overall machine efficiency, speed, robustness, precision, User interface, etc.
I am as confident as ever that the machine will smash the performance expectations of SAT based on already demonstrated laying proficiency demonstrated in Australia. We are truly living through some exciting times.
Heads up peeps, Mark and Mike want this to hurry about as much if not more than the rest of us.
I am assured by the fact that if there was a delay it would be for a good reason and Mike/Mark have our backs and are aligned with our interests as shareholders.
Time will tell. Anywho, tootles.

Not investment advice. Do your own research, etc etc.