It can be quite a spectacle when critics smell blood in the water, particularly if the one doing the bleeding is one of those artists they (we) love to hate. And so it seems to be the case with Alejandro Gonzalez Iñárritu, the much-garlanded director of Birdman and The Revenant, who came to Venice with the Netflix-financed, much-hyped, and achingly sincere Bardo (or a False Chronicle of a Handful of Truths), only to receive something of a drubbing.