We attempted an experiment in our own dishwasher after the video, trying Cascade Platinum boxed powder (only stuff available here) and Cascade Platinum Plus pods (which we had been using before). The experiment showed that, for our dishwasher and our water, the pods just worked significantly better. The main difference was in the silverware (tiny bits would occasionally be left with the powder).

A couple of months into the experiment with the powder, the dishwasher started to smell a bit foul, which usually indicates time to clean the filters, which I did. But this happened vastly sooner than I was used to with the pods.

Even if the powder's performance sucks intentionally because Cascade made it worse now, as a sibling comment suggested, ultimately that's the only powder option still available here.

His tests found that a brand that makes both powder and pods makes the powder substantially worse.