I find his videos to have quite a bit of hand waving and poor methodology together with being overly verbose.

For example, he kept on saying that pods are not better in previous videos, but in the study he presented in this video, it showed that pods are performing significantly better than powders in every category. The study (which was not linked and I couldn't find it) was sponsored by a powder maker which the video recommends, but even this study showed just on par results with pods.

He does mention that a number of manufacturers aren’t making powders at all anymore, and also suspects out loud that they just aren’t trying with their powder detergents anymore, or are not bothering to apply improvements to their formulae to the powder form because manufacturers would rather sell the powders anyway.

He also specifically calls out Great Value brand powder as one he finds to be consistently on par with pod performance

That has not been my experience with pods. When we switched back to powder the difference was night and day. Even my husband who used to swear by pods eventually gave in and agreed powder is much better. It is a bit fiddly yes but powder getting 99.9% of our dishes getting cleaned on the first run sealed the deal for us -- previously we were always having to add dishes to the next run or falling back to doing it manually. What makes it even more intersting is that even the cheapest powder beats every brand of pods etc we've tried. And we have a shitty cheap dishwasher that came standard with our new build house.

Nobody expects better results from a higher-priced product!