Do you know why the Kessel run is considered a gauge to measure a ships speed and how Solo accomplished the feat to make it the fastest run? No.. these lines exist just to show us the awesome potential of the Millenium Falcon and we also don't get an explanation why the Millenium Falcon is considered a rustbucket by everyone else just by looking at it because, at least to me, it looks fine (no actual rust) and only on closer inspection and experience do people know she's prone to diva behaviour and occasional failure.
The same applies to the PT.. i like the fact they introduced story elements and characters and have people talk about them casually without turning around and spending minutes explaining everything. Ok.. there was a guy called Sifo Dyas who ordered the clones to be developed.. it's not story breaking that we don't get background info. Also it's not story breaking that the Sith want revenge and there's the rule of two because their motivation is simply to be the antagonists to the Jedi and we (at least i) don't need an indepth treatise on Sith culture and history to make them work.
The Clone Army was of central significance to how Palpatine gained power. The Kessel Run had zero significance to any event in any of the films. To equate questions of the origin of the Clone Army with questions of the nature of the Kessel Run is really very disproportionate.
One other point. Everyone except Anakin and Padmé was treated as a glorified prop. We found out more about the origins of C-3P0, R2-D2, and Jar Jar Binks, of all beings, than we did of Obi-Wan Kenobi. Lame.
By the way, regarding what Dream said about certain figures remaining completely mysterious. I could in principle be OK with that, provided there is a clear contrast between those deliberately mysterious figures, like Yoda and Palpatine, and the other main protagonists besides Anakin and Padmé, such as Obi-Wan Kenobi in particular.
Really the fault in the case of Obi-Wan is probably in having introduced Qui-Gon Jinn and Jar Jar Binks as major characters, as in Episode I they sucked the oxygen away from Obi-Wan.
In my opinion, Obi-Wan Kenobi should have been the protagonist not only of The Phantom Menace, but of the entire PT.