CU did not test the machines with water blocking items in the lower rack
Of course not. Why that would have revealed the horrible design weakness of one-arm wonder KithcnAids. Heaven forbid what was perceived the bestest premium dishwasher couldn't withstand applications that household used their dishwashers for. I cannot tell you how many times I'd notice friends of my parents who had these dishwashers washing pots, pans, mixing bowls, casserole dishes. And as even a 11-12 y/o kid making a comment such as "well, if you had a ... (GE, Whirlpool, Kenmore rotorack, or Waste King after 1962), you wouldn't have to be washing all those ... by hand. You'd have a dishwasher that could wash all these." And the looks I'd get. but I didn't care. One of my mom's favorite party/dinner party entrees was lasagna. With the Waste King I loaded up the two-part pasta pot, mixing bowls, sauce pan, and ... and let them all be washed in the Waste King. All the prep items were washed, dried, and put away by the time company came--all automatically. My mom dreaded washing stuff by hand as much as I do to this day. And I'd do the same at friends' house who had one of those KA dishwashers. I dreaded loading after dinner at houses that had KAs because you had to be careful how things were loaded. I'm so glad that multi-level designs started being the norm by the time I was 9 or 10 and became fully aware of loading dishwashers. What I found "interesting" was more people who had Spin Tube machines, they were replaced with Maytag, GE, or WP before KA. I'd ask why and the reply was always something to the effect you can put glasses and bowls in both racks and fill it up rather than having the machine half-full when the top rack was full. And I witnessed many half-full KAs being run too.