yes, fuel contamination (with effluent probably) is still very much in play as a possible factor.
unfortunately, there has been a lot of typical misdirection and wild statements out of India, like trying to preemptively clear the pilots of wrongdoing before the recorders have been read out.
most of the initial reports about the flight recorders were easily disproven as the 787 does not use an FDR/CVR but a more modern type of recorder that captures more data. which supposedly India lacks the equipment and/or knowhow to download.
the chances of an objective and transparent investigation are basically zero.
unfortunately, there has been a lot of typical misdirection and wild statements out of India, like trying to preemptively clear the pilots of wrongdoing before the recorders have been read out.
most of the initial reports about the flight recorders were easily disproven as the 787 does not use an FDR/CVR but a more modern type of recorder that captures more data. which supposedly India lacks the equipment and/or knowhow to download.
the chances of an objective and transparent investigation are basically zero.