I am not familiar enough with the AALC “inside baseball” to know why then ended up like they did.
http://www.taalc.org/FAQ/AALCOrdination.html
It is a very odd thing at times. The bible is pretty clear on who can be ordained, but if you say that to many of the remnants fleeing the ELCA, you will be called “sexists!”.
I am not even comfortable with a divorced man being a pastor,( I Timothy) let along a women. I get plenty of flack for both views.