While they can't tell the weather, they are pretty good at predicting trajectories, and if an ELE threat was inbound, I have little faith they'd tell us (and I kind of agree with that).
That said though, there will undoubtedly be some that know, that leak it. The trick is going to be telling the nuts from any real reports. In fact, governments themselves would likely flood the info channels with disinfo, just to muddy the waters and make it all seem like bull (at least that's what I'd do in their shoes).
My confidence level of the two guys in the videos is about nil.
If there were really something heading our way though, I imagine that at some point, those that really dug into it would see some supporting evidence that refines the REAL information. Somebody's going to slip it out, that's just human nature.