No that’s the point it would not be in defiance of the government because the government don’t have the authority to tell private companies or individuals what bits of water should be called.
They don’t need the authority. If the government says “this is x” and you say “no, this is y” that’s defiance.
They don’t need the authority. If the government says “this is x” and you say “no, this is y” that’s defiance.