There are actually somewhat legitimate reasons why someone might want a speedy release:
1) If that someone has low tolerance for bugs he might wish for beta polishing to happen. Seriously, he should never buy EA games.
2) If he has problems with the performance he might hope for beta optimizations. Sometimes it is because he is playing on a machine with not enough RAM or a machine so old it creates a bottleneck somewhere. Sometimes it is because he is playing the game outside of limits (for example number of players), sometimes it is really because of missing optimizations (electricity, lots of recipes)
3) If he is a PvP player again he might hope for beta or after-release patches or DLCs to remove some exploits.
I'm not in any of these groups. I'm quite astonished that I have to adlib possible reasons to the "enemy camp" because they don't seem to find any reason themselves except for "I don't have the patience to wait"