The Bunga Kekwa A gasfield, in the PM3-CAA block is certainly in the right spot to have seen the aircraft go down - but how many staff would have been on duty in the wee small hours, and would they have been looking in the right direction?
There must be communications between Bunga Kekwa A and the mainland - surely some information would have come in by now from the platform, if they'd seen anything?
This is certainly a strange and puzzling incident, particularly with the B777's superb accident record. Then again, so was the AF-447 crash a total puzzle.
The major difference this time, it's a Boeing, not a Bus. I can't help but suspect major pilot error/incapacitation here.