And that's exactly why studies like this are important. Popsci writers tend to grab onto very minor nutritional points and weave complex narratives out of them. Making pretty minor variations seem like the cause or cure for various things. You need studies every now and then to highlight the broader assumptions that aren't as newsworthy. Both in terms of importance in data as importance in public education. I mean sure, most of us can point to life experience as evidence of the link between calories and weight. Often with long term data thanks to digital scales, calorie apps and the like. But in the end the only real rebuttal is proper scientific evidence. Which things like this offer.