New gods tend to try and want to establish their influence in Avalon.
Since most talented fighters or politicians are already in orders the obvious recourse is to invite the young.
Or more like accept young who say spark their interest. Since Essence doesn't work (or as much from what I gather) as it used to from order members deaths then it really doesn't hurt you to have a large order.
Ultimately though, and frankly who the gods let into or don't let into their order isn't any of your godamn business.
Written by my hand on the 6th of Midwinter, in the year 1304.