Agreed that this is one of the major mechanisms. But that's not the point I'm making here. It's a more general point regarding how the implicit "Why now?" quest

Agreed that this is one of the major mechanisms. But that's not the point I'm making here. It's a more general point regarding how the implicit "Why now?" question is often more newsworthy than the explicit "What?" being reported. And also the fact that, unless the reader is willing to make a conscious connection to that fact, the lack of nuance often serves to swing a discussion in the opposite direction to what conscious examination of the timing would suggest (e.g. via the framing effect).