Yeah but it's still quite simple in the way it works, a lot happens in 1 frame though, but there are very separated parts and most of them never change now (except when trying to change the underlying lib, sdl !).
You can still compile raine with only 1 driver inside, you can even decide you don't want the console (and the cheats which come with it now) to make an even smaller binary, then you take only the cpu cores you need... you can still make a very tiny raine (and it's easy to do if you know how to compile it, there are scripts to make that very easy if you have perl installed).
Anyway...