Yea, it's very easy to pick on Pedrosa and that's because he's been picked on his whole life. He's very emotionally fragile and most of that is due to his size, or lack of it. People of substantially smaller stature either build up a thick skin or they turn into guys like Pedrosa. Very angry on the inside and feel constantly under attack.
Stoner has no excuses, yea he was picked on his entire career, but his mental block was something he could have easily fixed. Pedrosa on the other hand, you can't fix that he struggles to ride a MotoGP bike due to his size. People blame him for everything, but put yourself into his shoes. Imagine having one job you're good at and people constantly picking on you for doing that job. You can't leave because you can't do anything else and it's hard to stay as well.
The guy who wrote that article is a wanker and only see's things from one myopic perspective. He's right, Dani doesn't really give back to the sport… but neither does Jorge Lorenzo. He's right, Dani doesn't win a lot of races, but neither does most of the grid. Dani lost a championship because his team messed up, not even his fault! He's right, Dani's been given the best machines his entire career and hasn't been able to turn that gift into many championships. However, when Rossi was given a substandard machine, he couldn't ride it. Lets face it, once you've got the best, it's hard to go backwards. Everyone needs the best machines to compete with the top riders on the best machines. Plus, Pedrosa needs extra support because the SOB is so small, he needs a special bike. If he went to another team, he'd founder.
So no, I don't dislike Pedrosa at all. He is no different then Jorge Lorenzo in my book. Dani has to work a lot harder then his comrades due to his size. He's also a vastly private person like Casey Stoner is. Remember, racing is a job to these guys and the moment they leave the track on sunday, they have an entirely different life. Without knowing that side of the person, it's very hard to pick on them.