MH370 still missing

Jeff Wise is closely following the MH370 story on his blog:

It’s been almost two years since MH370, and the worldwide search into the greatest mystery in the history of aviation is looking a little ragged. Nothing has been found on the seabed where satellite analytics said the plane must have gone. Only a single piece of debris has turned up, and it’s under lock and key in France. Some are starting to grumble that we’re reaching the end of profitable inquiry. Others say maybe it’s time to consider a broader range of possible fates for the missing plane. 

To get a sense of the mood of the room (as it were) I’d like to pose a question to readers:

If the search of the seabed comes up empty, no further debris is found, and investigators find significant problems with the flaperon (such as proof that the barnacles are less than a year old, or that the the barnacle species mix indicates it didn’t originate on the 7th arc), would you be willing to seriously consider the possibility that the satellite signal was deliberately tampered with and that the plane went somewhere else other than the southern Indian Ocean?

No, this is an unreasonable idea. Tampering with the satellite signal would be so complicated that no one could have attempted it, and in fact it might even just be totally impossible. The plane must have been on the seventh arc somewhere in the Southern Hemisphere at 0:19. Occam’s razor.

Yes, and in fact we should disregard satcom data entirely. Maybe it was corrupted deliberately by Inmarsat or a Western intelligence agency, and maybe the so-called experts don’t know what they’re talking about. The plane could be anywhere.

Yes, but we can’t disregard the satellite data entirely. The data is not illusory, it had to be generated by some physical process that originated on the airplane, and analyzing it might help us understand where the plane went.

None of the above. (Explain).