Dante had some quite prominent Christians in his Purgatory as well.
But I guess only Muslims can be offended by art.
Some of the greatest artists in Christendom have illustrated the final destination of corrupt clergy. Dante portrayed Bishops and Cardinals in hell, as did Michelangelo in his fresco of the Last Judgment. St. John Christostom said "the floor of hell is paved with the skulls of Bishops."
But as you know, only Muslims are above criticism.