May I ask why you believe it needs to be translated by someone

Firstly we do not advertise that all of our templates are available in every available language.
Secondly it is not possible to hire a team of language experts for all available languages.
Such cases rely on user contribution as it is done in joomla itself unless commercial product advertises itself to have all said languages.
Currently we don't have this translation unless a Polish user translates this file.
See you around...