I did not go to C4 either. Just read about the book. I totally forgot about The Vault. I think I might have to take the plunge and buy the book.
It is a really cool book. I’ve thoroughly enjoyed it. I find myself randomly picking it up and spending hours looking through it.
Because two Sith are more dangerous to the Jedi than multitudes of Sith against each other. At least if there are only two Sith, there’s only one backstabber you need to keep an eye on, not hundreds. The forces of Evil aren’t especially well-suited to sharing and cooperation.
That’s why Darth Maul’s double bladed lightsaber was amply suited for evil, just in case multiple people tried to stab him in the back, he could just unleash that second half of his blade for some slicey dicey… too bad he got halved by an enraged jedi pupil.