Dani seems to lack the reserve when the bike isn't up to par. He rides the wheels off a bike that is working ok to well. But a bike that's not happening today just takes the wind out of his sails. When he figures that out (he may not) he will be like Rossi on a two stroke.
And when he's passed it appears he resigns himself to second place and rides accordingly. But the guy crashes less than he used to. Maybe that's why he doesn't have that second wind.
BTW bring back real race bikes dammit.