Are you serious? That has to be one of the most biased comments I've read. I can name far more mistakes Hamilton's made in his career than Rosberg.
Neither of those are particularly good examples.
Brazil '07 - Lewis might've delivered in qualifying, but he choked severally in the race. He ran wide twice in the opening few laps.
Brazil '08 - Nearly threw away an easy championship, overtaken by Vettel with two laps to go, and was lucky the rain got heavy at the end.
Everyone can name Hamilton's mistakes, there's a thread on every last one! Also, there aren't too many to remember . Nobody takes so much notice of Rosberg's and the others, especially in the midfield. But I do remember Patrick Head getting annoyed about them.
In Brazil 07 it was not choking but 'race rage' after Kimi brake-tested him and then as a result Alonso got past. Then he merely overshot passing into T1 as he had to keep trying. The drive was perfect otherwise, and he might have clinched the title even with the gearbox fault if Ron hadn't gone for the short stint on options.
In 08 it was a brilliant drive under massive, massive pressure with the wretched low-downforce wing in the wet, losing positions with bad strategy and then Kubica pushing through. I just don't believe Nico at 23 could have done it. The pressure is unimaginable. Look how nearly Vettel tossed his championship away last year, how Alonso tightened up...
So whatever advantage Nico is going to enjoy it's not going to be a strong head. They all feel pressure.