Joining the Diesel world

As a new diesel owner just as the OP where is the proof that current diesel fuel doesn't meet the Bosch requirements? Is there any testing that indicates the Denso pump in the new Duramax is less sensitive to contamination then the Bosch? Test samples from 2002 mean nothing in 2016 that's history. There's no doubt that there were issues in the past during the transition to ULSD, many hard lessons learned. I'm reading that there are many 2012-2016 stock diesel trucks doing 100k miles plus without issues on the CP4 system now. This indicates that today's fuel for the most part is better, and manufactures have improved filtering and delivery. I'm still amazed to read in the forums that some have not changed a fuel filter in 50k plus miles. One admits to running his Duramax filter monitor all the way down to 0 and still drove several thousand miles before he had it changed.