The Ambassadors of the Star Alliance appeared before Alexander as they claimed to be here to protect!
To include what they called a Star Realm- what the budding changes of Ephesus ultimately led to, into their force.
The alternative was something that they painted a picture of as being tremendously worse.
That if it wasn't them who were here, it would be the entities from the Dark Ruler or the Beast Alliance who would enslave or wantonly murder the natives of Ephesus!
Alexander thought about all of this as he weighed the pros and cons, and the sheer unknown amount of power behind these beings.
Because at this moment, what he faced was not just five Void Rulers- it was an unknown number of Void Rulers in this so called Star Alliance, and very likely much more powerful entities apart from them.