I saw this comment on TV too. First, I was impressed that Rock saw R&H. Then again, given the love for MLK, BB King and Billie Holiday that was showcased on that album and film, it's not too surprising. One of the founding members of this website was a black woman who grew to love U2 because of "Angel of Harlem". To paraphrase her words, she said she couldn't relate to them before, but did after R&H.
I was puzzled as to the scene he was discussing. I thought my memory had faded. I guess it's really Rock's memory that faded. Either way, it's a nice idea and I think he could pull it off well. Plus a U2 plug is always good.