Ummmm... Maybe the IAU process was flawed (not sure I know enough to agree or not) but depicting it as some sort of tyranny is a bit much.

Authorities _always_ provide definitions that we use to judge the universe around us.  

The UN has a definition of genocide.  And refugee.  And poverty.  The National Weather Service has a definition for fog.  And for hurricane severity.  The Motion Picture Academy has a definition for "short film".

The list goes on...  The point is that those in the know, in the industry, always provide the definition for the rest of us to work with.