Thanks for the info and photos. The iterations indicate that Brompton does not consider the rack design to be matured either. The racks on our Bromptons are both pre-2016 but I have hard time figuring out how the current model is different. Checking the other Brompton I can see that its rack is shoved to the right too, but at this point not locking the wheel. Anticipating further work I placed an order for more mini hose clamps for the braces.
The new rack shown above does not have "pin" connected top stays so it has more resistance to "racking" sideways.