In a highly talented field of closely matched competitors with spec engines and spec tires its highly unlikely Marquez can simply run through corners with 500-1000rpm more engine speed every time. Thats massive, at this level I would expect 50 - 100 rpm maybe at most. This explanation appears far too simplistic. So he just holds the throttle open? The other riders must be thinking gee, why didnt I think of that. Its not a reasonable explanation.
Different gearing perhaps, but again the other teams and riders can quickly figure that out, they're not stupid. Possibly its a set-up thing. Perhaps he sets the bike up specifically for more weight bias on the rear tire to gain traction and advantage on the exit. But its a balancing act. Gaining an advantage on corner exit normally means some sacrifice on corner entry, otherwise they would all be doing it, so he must ride around any corner entry issues because he has that specific talent? This would be plausible, if it matched reality. In reality he looks similar to the others in corner speed, then gains the most when the bikes are all bolt upright, almost like he has an extra 500rpm. He even has to stick his head up out of the fairing to avoid overtaking when he wants to stay behind. Its unusual to see. So is that what the team let slip, he has 500rpm more to play with?
I dont notice a speed difference through corners anyway. If anything Espargaro looks to have the better corner speed. At Montegi he was making up heaps of ground on MM through one flowing section only to lose it all again down the straights. MM even looked back one time as if to say ha!, here comes a straight see you later.
Ive just witnessed the two at PI. Now while this is a fast track, its deceptive in not really being an out and out horsepower circuit. If anything they call it a riders circuit requiring a big set of balls to keep it pinned on the high speed sweepers. Espargaro left MM in his dust, no extra 500rpm in those corners.