1. Some areas of Spurious are being redone because before it was basically some nasty vb6 code from vbWoW (Like AI)
2. Me and WoWaddict are hoping to continue regular development, as well as possibly some older team members like Clain or CoolManBob. Most of us are having to tackle some IRL stuff, so it is tough for us to work on Spurious.
3. We don't have a Wiki atm because there are more important things like working on the actual emulator :P
4. Spurious has almost no features (Only like AH, mail, basic combat) stuff like that works. Not sure why you are saying it would be best.
5. Compiling Spurious has to be the easiest thing ever. There are no dependencies or anything, just open up the solution file and hit build LOL.
Edit: By the way, MaNGOS is by far the most documented emulator out there, their wiki is very helpful, and their staff is specialized. Now they can actually focus on their main task instead of having to worry about 903492 other things.