Annihilation every 7 days will NUKE their own servers

Just today (25/08) at 02:15 (UTC+2), an Anni event was going down.

Me and a couple of friends (as well as the 6 other members) were going at it when all of a sudden, the entire server closes and disconnects all of us, putting us in queue in another world.
Which, obviously, screwed our anni run.

And no it's not surprising to me, cause ever since I participated in my first anni event a week ago, this otherwise exciting world boss would slowly turn into a useless DPS test dummy, because it just would barely move anymore.
A week ago it was fine, and it even wiped our party's asses (not by the sun).

What's the issue? OBVIOUSLY THE FACT THAT THEY ARE SQUEEZING MORE AND MORE PLAYERS ONTO THEIR SERVERS ALL AT ONCE? SINCE THEY ARE REDUCING THE FREQUENCY OF ANNI SPAWNS TO ONCE PER WEEK.

I don't know who's responsible for the decision making of this but VERY CLEARLY they did NOT realize how much this will ABSOLUTELY DETRIMENT THEIR SERVERS. ALL OF THEM.

You can have faith in this as much as you want, but in time, more and more worlds will just be forced to close down because of the sheer amount of activity in it, and more and more players will be frustrated because it's not about hoping whether or not you'll survive the boss or not, it'll be about whether the server can live through all of it.
And the latter is a game of CHANCE.