This might be a good time to mention that the factory attachment of the genoa tracks isn't very robust, given the high loads that can occur. In the process of painting my deck I removed the tracks and noticed there was gelcoat cracking at nearly every bolt hole. There were no backing plates under the deck, just small washers t each nut. I pulled off the headliner and installed long strips of 1/2" wide aluminum as backing plates. It was a royal pain but I sleep better now.
I have no idea how the load of a cleated dock line compares to genoa sheeting loads. However even in the reinforced state I wouldn't rely on a genoa track cleat to secure the boat in a strong storm.