It was Dolan’s predecessor, Cardinal Egan (I had thought Cooke), who publicly did not invite Bill Clinton to the Al Smith dinner all those years ago because of his abortion position. Not sure that Dolan did or did not invite Bill, but it would have been awkward for Bill after the public censure back then. Why they invited Hillary!, whose views are identical, is another question. The Cardinal was wrong not to address abortion head-on.
Clinton was invited in 1992, and he did attend.