While neither artists nor critics exactly choose their predisposition or disposition, and certainly don't choose the historical epoch in which they live, it becomes increasingly difficult to imagine an intellectual or cultural sphere in which the postmodern exceeds the metamodern in either mimetic rigor or emotional and moral amplitude.
When we speak of modernism and postmodernism, and for that matter when we speak of metamodernism, what we mean by "movement" is a series of ideas in philosophy that are a) the subject of scholarly study and discussion, and b) can serve as actionable intelligence for various artists' creative practices.
Many UU leaders and quite a few individual congregations have openly moved away from viewing a humanist approach, free from theistic declarations, as the appropriate neutral philosophical place for all UUs to convene. It hasn't gone unnoticed, but the issue rarely gets addressed directly and openly. It's time for that to change.