I'd say the first big thing to highlight is that correlation is not causation - you wouldn't want someone to take this study as proof that eating meat makes you less depressed. I would imagine that vegans (in particular vegans who chose their diet on ethical grounds) are overall more concerned about the state of the world around them - or are at least subjected to more of an echo-chamber effect from their peers - whi…
A second big thing to highlight is the study disclosure at the bottom of this article. Four of the six authors "have previously received funding from the Beef Checkoff, through the National Cattlemen’s Beef Association."