"is branded as a fast tram, which is otherwise known as light rail"

if branding would settle things, then McDonals would be mapped as restaurants

also, "szybki tramwaj" is not necessarily light rail


> 'Light rail (or light rail transit, abbreviated to LRT) is a form of passenger urban rail transit that uses rolling stock derived from tram technology while also having some features from heavy rapid transit.' - Wikipedia 

there is nothing here about branding, and Wikipedia definition is not necessarily matching OSM tagging definition