I know Valorum wasn't a Jedi, the point is to imply that Valorum, Sifo Dyas, and Plagueis are the same person. If dooku were sifo dyas it wouldn't make sense because he says "how could the Jedi come up with an army so quickly?" If he ordered the army, his statement is superfluous. If it were just any Jedi like qui gon, what authority do they have to speak to the cloners for the whole republic? See what I mean? If Sifo Dyas is Valorum, it is at least more believable that they would make the army without needing to ask questions. Not too mention if qui gon were sifo dyas, his master Dooku would be aware of what was going on. Like I said, this way settles a lot of contradictions and adds some depth.