Yea there's yet to really be anything about Arcadi being on the wrong side for now. There was the usual stuff where Scoppa said in his book that that bunch said "fuck the Rizzuto's" when Vito went away but it's really hard to tell with some of what he said because it was clear he jealous or had issues with a few of the gangsters in Montreal.
The Loreto stuff definitely shows he's in good standing but we can't always go that route either as De Vito was there if I'm not mistaken but then again DiMaulo wasn't