What I've seen over the last 10 years of being involved with youth soccer is that only constant you can rely on is change.Ceteris paribus, I agree, but that's a bold statement given everything we've seen happen over the past few years.
There seem to be several "ECNL is the best" parents that more than anything want to vindicate their own decisions. If this was the absolute truth ECNL would also be the best on the boys side (which its not). Also GA, DPL, NPL, Socal, etc wouldn't exist if ECNL was the magic sauce for everything. I remember back in 2014 when ECNL was losing clubs left and right to DA.
Point is with youth soccer you never know what will happen next so it's good to maintain relationships with all the different clubs, leagues, and coaches.