No one has claimed responsibility, that alone leads me to believe this was not terrorist related. Someone always claims responsibility.

Two stolen passports are strange, but IMO most likely just two very unlucky criminals. Definitely odd they bought the tickets at the same time though. I would think if you were a terrorist organization though you wouldn't want your two bombers going in with stolen passports from a year ago. They are at risk enough of getting caught with whatever materials they have, don't need to worry about passports being flagged by interpol as well.

That fucking plane is in a whole other dimension, yo. Or abducted by aliens, maybe the two fake passengers were actually alien beacons.