@Andrew they cannot collect at the same time so it takes 2x as long at the docks its also now not allowed.. and they do get paid as if they did their own separate delivery.
my reasoning is that there is no advantage riding together
1 you have to pull out your own van to get the marker on your map -100$
2 delivery speeds dont increase when you ride together
3 no more clutter at the docks
4 you can ride with people at any time in the city except deliveries.. why?
5 no more player interaction driving solo no conversation just the classic gta radio with 5 songs. (extreemly boring)