I suppose if the component supply is relatively stable and capable such that defect rates at .65 or higher woudl be very rare and any defective components will fall out in the assembly process such that very few of them will reach the final inspection stage it might be more cost effective than having the incoming AQL be much greater than the final AQL.
but other than that rationalization, why would anyone advocate for an acceptable defect rate at incoming that is so much higher than the acceptable defect rate at outgoing?
