I've written about P & B many times before. My go to comparison is Die Meistersingers von Nuremburg which is not focused strongly on the triangle of Walter and Eva with Hans Sachs wanting in, but on all of these character's lives within a village. Same for Porgy and Bess if one doesn't destroy it with cuts. The cuts serve to focus more on the two title characters with Crown and Sportin' Life being the outsiders who want in. To me that makes all of the major characters far less interesting, more one dimensional when their community of loved ones is removed. I haven't yet seen the Met production so can't comment on it, but the one perfect production I've seen was Houston Grand Opera, and I saw many of the four Porgys, 4 Besses and other multiply cast roles. Of course I felt some were better than others, but all were splendid in service to a supremely well imagined rendering, both direction and conducting. Since then I have seen and heard on records my share of lesser versions including some that were almost excruciating, such as John Mauceri's cut and badly cast recording. P &B is a tricky piece to bring off well, just ask James Levine who couldn't get the hang of it when the Met tried it before.