First I will toot my own horn. I am no structural engineer, but I called a moving connection, even called a pin connection! Sorry. Isolation must be getting to me.
That connection being squared and plumb, not twisted in any way is crucial. Also crucial will be getting them in exactly the right positions “left to right” so that the align and don’t accidentally lengthen or short the distance the hoops need to span. There will be constant, active position tracking and correcting that will require a slow pace.
BillSU you should tell the engineer you don’t have a web cam and ask for a link just to see if he gives you one we don’t have. I’d bet especially with social distancing, that Geiger has more than one for collaboration between office and field.