I think Silva isn’t a mentally stable person in the first place.
I also think he had lost the speed he needed to capitalize on any opportunities he had.
As for stylistic nightmare, I would have to disagree.
First round Weidman is a stylistic nightmare for Silva, and everyone else in the division. After that, he always fades (with the curious exception of the Machida fight). I don’t think he would have been able to take Silva down again beyond the first round.
All of Weidman’s mistakes, the claims that he’s “winning” every fight, are all based on the first 5 minutes.
He was fading against Luke, Yoel, Moos, as well as against Silva and Kelvin.
So I’m a contrarian here. I think results are results, but:
Prime Chael would beat Silva more than 50% of the time, even though he lost twice.
Prime Silva would beat Weidman more than 50% of the time, even though he lost twice.
Prime Faber would beat prime Mike Brown more than 50% of the time, even though he lost twice.