The votes aren’t in yet, but there’s no doubt Danny Gokey is safe. Gokey is the Milwaukee church musician who breezed into the “American Idol” finals with some powerful blue-eyed soul in the wake of his wife’s death last summer. Recent commentary has criticized Idol for exploiting the death of Gokey’s wife, Sophia, but at least last night it wasn’t a factor. Performing on a Michael Jackson-themed night—which is an, um, interesting choice at best—Gokey unquestionably had one of the best performances with a cover of “P.Y.T.“ from the ‘80s mega-album “Thriller.“ The singing was accompanied by some rather awkward...