As Jay Adams puts it:
The futility of idol worship, as it is pictured in the Scriptures is plain. The foolishness of it is exhibited in places where the same man who carves an idol, then takes the wood left over and burns it in order to warm himself (Isaiah 44:15). Then, having finished his work, he bows down to it, as if it were a god. The “Dagon reference in the website presentation is to the Canaanite fish god that the Lord toppled in Old Testament times. It would be interesting to know something of the reason why, in His providence, God again toppled an image of this particular church in our day.