As you can see, the only significant effect observed was for fat mass (FM), where the IF group lost about 1.6kg (about 3.5lbs) of fat versus a nonsignificant loss in the ND group. All that means is that the IF group was in a slight deficit, which isn’t too surprising. Losing 1.6kg of fat in 8 weeks would require roughly a 200kcal/day deficit, and if you look at the first table above, the IF group was eating about 200kcal/day less than the ND group; they were likely eating a bit below maintenance at the start of the study, and maintained that slight deficit throughout.
I’ll note that the authors of the study propose that the decrease in fat mass in the IF group was likely due to the effects of the hormone adiponectin (which increased in the IF group but not the ND group), which may act in the brain to increase energy expenditure. That may be true, and if it is, that would be a real physiological advantage to IF. But I still think the difference in calorie intake is the more likely explanation, especially since there was no preliminary period to ensure all of the subjects were in neutral energy balance before the start of the intervention.