No mention of twin oil slicks corresponding to two engines.
Nor do they mention that the Italian and the Austrian were stolen passports so most likely not from those countries.
Since there is no visible wreckage, did someone nosedive the plane?
It is strange that no parts of the plane- seat cushions, luggage, flotation devices - have floated to the surface.
Didn’t hear about the stolen passports. What is that about?
The “oil slick” would be from the kerosene based jet fuel, not from the engine lubricating oil. There isn’t enough engine oil to make a substantial oil slick.
The kerosene oil slick would evaporate in a few hours. It would no longer exist.
If the aircraft broke up, for whatever reason, at 35K feet, there would likely be no “oil slick” at all due to dispersion and evaporation from that height.