I assume part of the reason for doing it like that is that it gives user feedback for the systems rather than just following what ever assumptions they put in p

I assume part of the reason for doing it like that is that it gives user feedback for the systems rather than just following what ever assumptions they put in place for their automated testing. It also servers to be driver training, which is very important and takes a long time, so if they can start sooner its probably a good thing.