IMHO it is not over until they retrieve the debris and can identify it as from the missing airplane. There is a lot of “junk” floating in the oceans.
Do I believe the plane could have gone down SouthWest of Perth where they say it is? Sure, that is plausable. Do I believe the plane was hi-jacked. Yes, that is also a plausible theory. I am just going to wait and see with out jumping to conclusions. Just going to keep an open mind on the whole thing.
And the Navy has sent a ship to the area to search for the black box so presumably it will also pick up whatever other identifying details are retrievable. The fact of a crash certainly doesn’t cancel out the theory that someone in the cockpit was responsible for the plane’s disappearance.
My problem with the hijacking is... Where did they take it? How could they fly that far (to land) with no one seeing it on radar? And how do you hide a 777 AND keep that knowledge quiet? just doesn’t seem plausible.
And if they hijacked it to crash it in the open ocean...why? To what end? Terrorists like to advertise what they’re doing. A “terrorist” act that no one ever finds out about really isn’t a terrorist act.