Keep thinking
The Final Report is the one to read. I'm not trying to be coy, the fuel that made its way to the Lab seems to have tested well, within Spec. No argument with that. What's missing is unfortunate. Exact position of Throttle Levers? AOA? Exact temperature of mixture entering LP and HP Pumps? How long Mixture "cavitated"? Where is the liquid (Sic) that transited out the hot end? Indeed, where is the material that hasn't been subjected to "tests". Post incident, there remains a percent accuracy for any test performed having to do with all systems. Without testing ALL the remnants of the tankage, no result is foolproof. These are dedicated professionals, who do excellent forensic work who also happen to be under a huge Microscope. From what's been released, either the throttle settings sequentially slipped to low thrust positions, or Quantity, Quality of Fuel was compromised. Turbofans are not terribly complicated; pump fuel, they provide thrust at very predictable levels. Withold fuel, they reduce output.