Yeah, the third paragraph made me think of the paleolithic diet and the rest of low-carb diets in general.
It sounds like these researchers might be searching for a drug to do the almost same thing, by inhibiting the SRC-2 they discuss, i.e., by inhibiting fat transportation and storage.
Could be but that's way above my bray grade. Going to ketosis involves a change in 'body chemistry' that the drug might not effect.
They're talking about some way to shut down fat storage. I'm almost certain that insulin, among other things, is considered to be the fat storage hormone. The article doesn't tell us much about just how this fat storage pathway they discuss works, or how it interacts with fat, carbohydrate and blood sugar metabolism.
I still bet they're looking for a drug to interrupt fat storage somehow.