Currently, any building that is not on your <BreakdownOrDestroyExcepted> list in internal code will be forcibly destroyed if placed on water.
The base game has very few buildings that can be placed on water, but other mods have buildings that should be placed on water. But they will be destroyed because they are not on your destruction exclusion list.

I have taken measures to skip the destroyed of my building using the harmony transpiler, but for better compatibility, I think it would be greater to be able to add defNames to the excepted list via an XML patch. This will should be easier than you having to go through each one and write them to the excepted list.

Please consider this in future updates.