I was thinking this might be the case just based on the conclusion. But it doesn't seem to be retracted, and I can't find any evidence of a scandal.
The authors are pretty clear that they didn’t find what they were looking for and so they just tried whatever they could with the remaining data and landed on dog pooping orientation.
When I put it like that, it evokes more pity than outrage. Imagine what they had to go through to collect enough data.