Translations for Plugin " Group_assign"

I saw a big difference between all other “translatoins.pho” (like this one) and pt_BR/translations.php:
pt_BR with neyrby 100 lines and other one with < 15 lines.

So I created a “complete one” based on pt_BR for de_DE.

But that might have been useless work? Additional translated lines are useless because translations are already in KANBOARD locale?