No.
Mozilla is actually two legal entities. Mozilla the Corporation and Mozilla the Foundation (but the mantra is "One Mozilla").
The Open News team is part of Mozilla the Foundation, just the way that the Open Badges and Open Science teams are.
Mozilla the Corporation is responsible for Firefox and a variety of other projects.
But as ever, Open News and all of the efforts within the Foundation are very much part of Mozilla, and there is, obviously, no deception going on.
The Knight Foundation, the New York Times, and the Washington Post are not stupid enough to be bamboozled in the manner that you appear to be implying.
P.S. if the mods are reading this... OpenNews is developing the tools WITH the NYT and WaPo, not (just) FOR them as @dansinker notes here: https://twitter.com/dansinker/status/479645936168493057