I knew the reason and I understand it, kinda.
How much dose can you really separate going from the control point to the drywell?
I can understand it all but it seems like a nightmare logistically when you have to enter on the transit RWP, log off the RWP, log on the drywell RWP, log off the drywell RWP, log on the transit RWP, log off the transit RWP and you leave.
Put em' on the drywell RWP and have them check in with the rover in the drywell. DONE.