You can't get anything useful if you focus the entire window on the post prandial. The body is complex and caloric balancing is not a simple thing. Studies that focus on appropriate (24 hrs+) periods of time never measure any difference. Not only that their own study showed that:
> Low-calorie breakfast increased feelings of hunger (P < .001), specifically appetite for sweets (P = .007), in the course of the day.
So for many people who don't eat a large breakfast your compliance is going to be impacted. Anyone familiar with nutritional science will tell you that compliance is a much bigger deal than eeking out tiny theoretical shifts in calories by shifting meal times, which even if you could prove were real would absolutely not be worth it if it broke your overall compliance.
Outside of that, this isn't a novel finding. We already have small pilot studies showing this stuff that have the same problems. Repeated science is often underrated, but these results are uncontroversial, they are just over interpreted and old.
> Extensive breakfasting should therefore be preferred over large dinner meals to prevent obesity and high blood glucose peaks even under conditions of a hypocaloric diet.
Like, sorry, no that's absolutely not a fair conclusion of these results. It's just not.