World How should Annihilation held(against server crash)

This is the suggestion to solve the problem that servers crash every Annihilation begins, based in my opinion.

IDEA:
-Make shorten period of Annihilation happen (12h or 24h from xx hours , 36 currently)
-players only can join Annhilation once every xx hours(36 currently)

THIS SOLVES:
-Timezone Problem. Annihilation happens often more = more chance to join regardless their timezone than it happened only one time with long period. every people from any regions will be happy.
-Server Crashes. this idea prevents players count spike = data traffic for each server will lesser.
-World Capacity. nowadays, before 15~20 mins of Annihilation begin, all world being full of players and everyone except Champion can't even play the game.

If you have any extra idea or found problem of my idea, feel free to discussion below. thanks :)