In light of so many religions now promoting falsehood instead of Truth (if they ever knew what the word meant) and using the familiar "fish" logo, perhaps an actual crown-of-thorns starfish would be more appropriate? Not as an idol obviously but the real thing.
Heretics always latch onto the least pertinent element of any situation and go on about that as if it were important. Only to deflect attention away from the real issue, sin and death and facts and reason. For so many the Word of God is like a poison barb, for Christians it's the path to eternal life.
I Corinthians 1:23-25 We preach Christ crucified, unto the Jews a stumblingblock, and unto the Greeks foolishness; but unto them which are called, both Jews and Greeks, Christ the power of God, and the wisdom of God. Because the foolishness of God is wiser than men; and the weakness of God is stronger than men.