I don't see much of a reason to have such a long window to return as long as deregistering and then registering doesn't provide any advantage which it doesn't seem to, as it doesn't allow you to skip the region cooldown or anything. I guess deregistering right before an election you are on the ballot for could screw with things? But that could happen under the current policy too.
Deregistering a week before the election isn’t even legal.
The reason for cooldowns is to keep the game more stable. There should be consequences for ragequitting.
Also Scott is not a registered citizen so not sure why this is in a civilian slot.