Rua beat Coleman and Liddell for his shot, it doesn't get much easier than that. That was the easiest road to the title.
As for who Jones beat, well Griffin and Evans wouldn't fight him. Rampage is to fat to fight, Silva is coming off a win over Brendan Vera, Big Nog lost two fights in a row to Brilz and Bader. So with Franklin's loss their really was no one else to give the shot to.
Besides I think the B-list guys in the 205(Bader, Davis, Gustfferson, Hamill) are much more talented a tougher than the older main event guys and it's a shame they have to go through each other.