It is good to see the DOJ openly defend the religious freedom of a Catholic school, as the story describes. I suppose someone will object that the action violates the doctrine of separation of church and state, but that’s an easy argument to refute. Specifically, it is not a promotion of religion for government to defend the civil rights of a religious organization.
Another objection might be that gay men have a right to be teachers in religious schools where homosexual behavior is regarded as immoral. But this, too, is an easy objection to refute. Gay men certainly have a right to be teachers, but they have no right to a job with any employer they choose.
There may be other objections, but I’m partial to the view that religious organizations have constitutional protection to operate as they wish to operate, which necessarily includes hiring and firing employees best able to represent the religious beliefs of the organization.