Don't forget that during S1 days patcher were faster because they were all small and (mostly) compatible. None broke replays or hotlaps. v0.3 was an official release with S1, which had some updates to fix issues for a good online experience, etc.
At the moment, we are not at full S2 stage, so there are not lots of small little fixes to do, LFS is in a hard development stage on the way to S2 final (v0.6?), so patches are slower but contains lots of new content, features, etc.