Can confirm what you say Chet as I'm sure anyone who has ever had a WP power clean dishwasher can attest to. I had my portable Whirlpool quiet wash for 30 years and not once... and I mean not once has the machine ever left any bits on the grate or the bottom of the tub. I sprayed very lightly and I didn't rerinse. Never took a dirty dish out of the bottom of that machine. Never had any foul orders or stench.
My current China pride GE occasionally gets weird smells in it because of the sitting water and you have to be more diligent of scraping off dishes and getting rid of stuff like tomato sauce, otherwise the filter clogs easily. The power clean would handle it like nothing ever entered into it.
We are definitely going backwards by adopting filters you have to clean yourself in a dishwasher. Oh I forgot. That's right. We have to save the planet.