Let's actually look at this guy's recent career.
In 2008, he pulls off a shocking upset over Gilbert Melendez, controlling the fight with front kicks.
In his next fight he beats an overmatched Bowman.
At the end of 2009, he rematches Melendez, and the fight is a complete 180, with Melendez dominating the majority of the fight.
Coming off the loss to melendez, thomson fights an underrated healy, and wins with a third round submission in an awesome comeback
Off that win, thomson fought cavalcante. This fight was a robbery, period. Cavalcante won rounds 1 and 3.
http://mmadecisions.com/decision/1953/Josh-Thomson-vs-JZ-Cavalcante
Off the Cavalcante robbery win, Thomson fought Kawajiri in Japan. Thomson was thoroughly dominated for 15 minutes. This should be two losses in a row.
Off the thrashing by Kawajiri, Thomson fought Noons, and lnp'ed him for 15 minutes. This fight sucked. Badly. But, due to Strikeforce matchmaking, a robbery win, a dominating loss, and a lnp win = title shot.
For whatever reason, Strikeforce decides to make melendez/thomson 3. Everyone thinks thomson is going to get crushed, but he manages to make round 3 competitive, and wins rounds 4 and 5, resulting in a split decision loss.
Then he comes to the UFC, and fairly KO's diaz. It was his biggest win since beating melendez for sure.
But, there is no way all of this amounts to a title shot. Healy/Nurm winner deserves it a lot more at this point. Hell, so does dos anjos.