That looks like it was designed by the State Committee for Religious Buildings. Other mormon structures give me the same impression.
Your rejoinder suggests you’re reading this article as Catholic triumphantalism, rather than something in which Protestants can share. The telling thing about that Mormon temple is that non-Mormons aren’t allowed to see inside it.
Stirring a desire for that which is higher is always beneficial for leading people to God, especially if it praises God, unless it presents an anti-Christ, such as government or commerce.