The point is that people would either be forced to get up to attack, and then could defend at the same time (no one apart from 2-3 alliances generally SMSs people to wake them up alliance wise, it's generally gal mates), OR launch times are earlier in the evening, so those that can stay up later (lo Americans
) would benefit more, but the majority of incoming would start nearer the end of "prime time" in the evening