I think that although this poll is not going to get to the depths of the issue (ie: heat effect vs write cycles vs available space in eMMC for optimized writing) it certainly shows likely systematic failure.
I think you would need hundred's of respondants for each vehicle type / use profile / climate type..... in order to filter out each possible cause and compare failures with non-failures.
What is very difficult is that eMMC failures do not have single, consistent manifestations. The point at which an MCU finally quits is not an indication of an absolute failure of the eMMC, just that error levels became unworkable and the whole system could not keep running.
I think you would need hundred's of respondants for each vehicle type / use profile / climate type..... in order to filter out each possible cause and compare failures with non-failures.
What is very difficult is that eMMC failures do not have single, consistent manifestations. The point at which an MCU finally quits is not an indication of an absolute failure of the eMMC, just that error levels became unworkable and the whole system could not keep running.