You are right. But I do think that what is now called "fake news" is generated by a similar mechanism. I don't know what term to use. Wrong or false don't quite cover it. Perhaps 'unmoored' - a boat can be unmoored accidentally or deliberately, or by outside events - a big wave.
Yeah, I'm not sure what the appropriate term is here, either. Perhaps contentious? disputed?
I'm still trying to get my head around what fake news is actually trying to describe. I'd like it to refer to intentional deception, but I think it's being used much more broadly than that. I fear that it's effectively meaningless at this point, other than as a generic insult.