Hey welcome back. Are you connected to all the solar projects and support teams:
https://www.facebook.com/groups/1627137627565692
and
https://hive.burningman.org/ discussions?
The BxB and BxA are designed to reduce the exodus time, entry too. Some of the BxB and BxA are joining camps that brought the heavy and bulky stuff: water and shade. And there are on-playa water pick up options for BxB and BxA. There are people who take BxB in with their tent, clothes and food, and survive nicely in walk-in camping or the minimal service bus camps.
BxB & BxA probably reduce exodus hours overall about 20%, more reduction at peak hours, more impact as Nevada State highway patrol reduced the flow for safety reasons.
BxB, BxA, vehicle passes, and exodus have many threads on ePlaya.