Merk, I'm sure you pass on otherwise great cars just because it's not 1 qt between ADD and FULL. Most people don't.
For cars with large oil sumps, being 1 qt low may not be a big deal, as that 1 qt may only represent 10% of the overall capacity. Now, if your car has a 3qt sump, being 1 qt low means you're missing 33% of the overall capacity, which likely is a big deal.
I guess what I'm saying is that requiring a manufacturer to maintain 1qt difference between ADD and FULL regardless of sump volume is silly, and I would not expect them to adhere to it if they have smart engineers in the house. However, I would expect the owner's manual to clearly state the amount of oil needed to go from ADD to FULL so that there is no misunderstanding.