I dunno... seems to me Kenny is trying like hell. He said before the race that he thought his only chance was to get in front early, since it's so difficult to pass at that track. He did what he needed to do, and tried his best to fend off the others, but his bike just wasn't up to the task.
On-bike video is awesome, but some of the helicopter views are the most telling. They showed Roberts pulling away (slightly) from Rossi in almost every corner, only to be swallowed again as soon as they got on the power again. How many times did McCoy (and later Abe) almost rear-end Rossi mid corner?
Not to take anything away from Rossi, though; he ran a smart, dominant race. He happily followed Roberts through the first half of the race, preserving his tires and waiting for the front end to come alive. Then, as soon as it looked like someone (Abe) was going to get away, he passed Roberts with ease, and left him for dead. He was in control of the race throughout.
Oh, how great it would be to see Roberts on a competitive bike going head-to-head with Rossi. I'm a Honda fan at heart, but I'm hoping Suzuki can pull themselves together and make a better bike for Kenny. Watching Rossi kick everyone else's behind every race will get old soon.