But we should be dismissive of any new results from psychology, it just doesn't have systems in place to validate claims. There is some cool stuff in psychology that has been replicated 20 times, across different cultures, and over time. But the chances of a headline psychology paper being true are, generously, 5%.

To be far to the authors, they are in a bit of a bind. In order to get their Phd, and progress in their academic career they have to do "original" research.

For psychology for the last 40 years, this means do stuff like this. Get cohorts together and test claims. When one is statistically significant, publish. They really didn't have much of a choice other than drop their career. They are probably nice people who just want to teach college classes. Misinforming people is an unintended side effect and more an indictment of academia than of them.