[jonathanstrange]

I don't understand your point. The study asked people to (typically) eat during 10 hours and not eat during 14 hours, hence the 10/14 labelling. This resulted in a moderate weight loss, about 8.6% less calories/day were consumed.

You're suggesting that other schedules might also work and that 10/14 is "normal". Whether it's normal in the statistical sense or not is an empirical question (the answer is probably "no"), and whether other schedules would have the same effect requires another study.