I erred in my assumption that the organizers were at fault for the limited definition of "Klal Yisroel" implicit in the Citi Field event. Today, in response to the post, I received this communication from a reliable source:
Hi Rabbi Bechhofer!
How are you? I just saw your blog, for the sake of honesty I do want to point out that one of the organizers did contact me to involve OU Rabbis (and others on the "left"). OU wasn't interested. He met also with Rabbi Lerner about YI Rabbis. Not sure what they said.
So I do think they were trying to be inclusive.
I regret not having been dan l'kaf zechus. On the flip side, I am deeply disappointed in the "left" institutions that evidently refuse to recognize the reality of the far-reaching problem of the generation.