tbontb:
I wouldn’t say that’s really “the” question, though it is an interesting one.
Given other OO behavior such as Rabbi Avi Weiss’s local mixed-gender Christian Baptist Choir singing in front of his Aron Kodesh, the answer seems pretty obvious.
The question is how any “Yeshiva graduate” could possibly even consider such views, let alone spout them to the world.
The answer should further clarify itself if Rabbi Avi Weiss does not issue that retraction for the WSJ, as Rabbi Hoffman suggests they do.