I really cannot work out what you beef is jok.
I, along with many, many others do not care what designation is placed on a vehicle as long as it is licenced, appropriately priced and gets me from A to B safely.
All I can imagine is that you see yourself (and other Hackney licence holders) as somewhat a cut above the rest and deserve some sort of accolade.
Perhaps another method of identifying Hackney Carriages would be that they are all required to be fitted with personalised number plates. That would sort out the problem, wouldn’t it.?