“The Orthodox Union (OU), Rabbinical Council of America (RCA) and National Council of Young Israel have all in turn responded to Open Orthodoxy by severing their ties with the Open Orthodox institutions.”
That is not accurate. The Hebrew Institute of Riverdale remains an OU member synagogue and cooperates with RCA rabbis and YI synagogues.
I have stated this before in this comment thread and others have supported that. I am not sure why misinformation continues to be spread.