Well, apparently he can't do what the others can't either, if you don't have the bike designed and set up for your style it's either you adapt to it or you can't get 100% out of it let alone over-ride it like Marquez does, meaning, taking it beyond the tyre adherence limits, (rear of course) which was commonly known as riding a bike at 110% during the 500 cc era.
For Lorenzo style i will refer you to Yamaha Racing website, News, 28/02/2014 Sepang2 tests:
Massimo Meregalli: “We finished this three day test with some good improvements and were able to make the bike better every day. At the end Valentino was able to make the fastest lap of the day. Jorge continued to have some difficulties, especially because of his riding style". That's low grip levels which is exactly what this issue is about, with new or worn tyres, it's all about grip and how one can control the slides.
As for the way he likes his bike set up: www.cycleworld.com/2013/07/30/interview-with-valentino-rossi-yamaha-engineer-jeremy-burgess/
It's all in there, for more details there have been dozen of articles on the subject since the last link's date, we know he favours corner speed, which means a longer wheel base and more weight on the rear.
This is the opposite geometry than that allowing for better braking, turning-in, braking while turning and acceleration characteristics of a chassis such as the Honda RCV, reason being suspension work and geometry vs weight transfer in the first place.
Mortals with this level of interest in the subject knows that, especially if you take or have taken bikes on a track and have/had to deal with such things, it's not the level of competition, the way things are done is the same from club racing to moto gp, only the level of skills and complexity of the equipment differs.
ps, following your reasoning, moto gp journalist would only be able to report fairy tales and tea-saloon gossip.
ps2. It's not about his ability to win races which he did last year, it's about his ability to get the better of a guy who was consistently faster than him in his first season and retake the title, at Yamaha they know damned well that a repeat of Stoner's dominance is a real probability with Marquez riding the way he did last year.