No, they are called “hypotheses”, arguably the most important part of the scientific process.
And, sure, there is no reason an investigator could not consider leprechauns or God as hypotheses. But there is no good reason that they must always be included in a list of hypotheses. Is there?
He made no mention of “undefined laws”. That part of his statement that you just made up yourself.
And flukes absolutely can be tested for, and incorporated into a scientific theory. Hence neutral/nearly neutral theory of evolution.