This article needed editing.  If he weren't a bishop would he be allowed to ramble with self serving points? 
He laments the museum's lack of RCC presence.  The RCC was insignificant in lives of black persons. If anything, the violent hostility against blacks by Irish Catholics especially in NYC and Memphis are examples.  N The RCC didn't rush to the South after slavery like Protestant churches to offer social assistance.
Encouraging people to visit a museum is safe.  As a bishop & black man he asserts no leadership in the more controversial arena of parish life - engaging RCs in exorcising bias against blacks.  Coming from the Southside of Chicago, too, I was sharply aware of the intense prejudice against blacks. MLK said of his experience in this solidly Catholic environment: "I have never seen, even in Mississippi and Alabama, mobs as hateful as I've seen here in Chicago." This slice of RC presence should be in the museum. RCs were a minor note, at best, in healing & reconciliation.