There are not that many permutations with the aircraft out of fuel when it was. From my understanding the INMARSAT team did do comparison/validation with other aircraft flying in the area and that confirmed their view of what happened. The 'North' story doesn't fit the Doppler changes that were recorded. It is extremely unlikely that the person(s) flying MH370 were aware of the SATCOM tracking that could be done, therefore it is also extremely unlikely that they were spoofing the tracking.