“My quote about Rav Henkin’s view of Rav Goren was said explicitly by Rav Henkin’s grandson. ”
Thank you for being honest and admitting that it was from him. Yehudah hertzl twisted his grandfather’s psak about women saying kaddish, for instance. He also lied about rav henkin saying that hallel on 5 iyyar has a legitimate basis; in kisvei rav henkin, he writes that the state is a horrible violation of the 3 oaths! He also clearly misled gedolim into giving haskamos for his book, selectively showing them the teshuvos where he talks like a real rabbi and leaving out the mixed dancing, women wearing talleisim, etc..
Do you think Rav henkin approved of his son sending his grandson to a mixed college? That part of the family went off of his derech, clearly.
As for the story of being thrown out of his house, i heard it from rav yisroel reisman, rav belsky, and rav leibel katz. I also heard it from a talmid of rav dovid, aside from it being very publicized.