I'm only going off what my mates up there tell me, it can't be like that every game otherwise they would have moved back rather than spend their whole season in a part of the ground they loathe. And they definitely said (at the beginning of last season) that the corner was now a family section.
edit: feel dirty as fuck and will have to immediately delete browsing history to get rid of this disgusting website, but just checked the seating plan of their ground on nufc.co.uk (got there via Google Images, so thankfully didn't type it) and it confirms that all of that corner except one block is a family section. See below.
To be fair, what he's not saying is that Newcastle continued their unbeaten start to the season with a victory against everton (with two early goals) and went up to third in the league.
Imagine the atmosphere at Sunderland.