I wonder about the dice rolling not being in for stats. Even I know that has to be an incredibly easy thing to add. Which makes me suspect it's not in for a reason outside of the one give, which was something about production or time?

The only reasons I can think of are:

1. Multiplayer issue. One player is walking around with all 18's while another used point buy?
2. New players might get stuck rolling dice or get really low, subpar stats and not realize how much that's going to hinder their play?