I'm not sure I understand the reasoning that "no trademark" == "no authority".
Taxonomists don't have a trademark on "Canis familiaris" but we tend to respect their opinion on what is or isn't a "Canis familiaris". If someone points to a dingo and tells me "that's a Canis familiaris", I say "it isn't, according to taxonomists" and they told me "who died and made taxonomists the sole authority" I would raise an eyebrow.
