But that's not enough. One website that happened to be right once or twice before isn't a confirmation it's a real hybrid. For all we know, it could be a click bait article. Let's reserve judgement until Nintendo ACTUALLY shows us what NX is.
But Eurogamer and DigitalFoundry is pretty much as legit as it gets. I don't really know anyone in the digital gaming outlet sphere that has a better standing. There's also talk beforehand that it was a controlled leak.