Why don't you go argue it with the FAA. This is what they say about it, which is opposite what you keep claiming.
"Regardless of whether you are dispatched without a designated alternate airport, you must consider a possible missed approach at the destination airport (note that the rule does not say missed approach at alternate destination airport) in your required fuel calculations."
"Finally, if you fail to consider the missed approach at the destination airport factor listed under § 121.647(c) in your fuel computations, you are in violation of the Federal Aviation Regulations."

here is the link again