It irritated the hell out of me when the characters used to say Kannad. And its not 'nan kannad gothilla' its 'nanige Kannada gothilla' to mean I don't know Kannada. Thank God the story has moved out of Mangalore.
And the characters you showed as Kannadigas looked more like Tamilians, we don't even have such strong mother tongue influence on the other languages. Don't typecast all south Indian to the same category.
We atleast speak Hindi, how many of u can speak our language? And don't jump upon saying Hindi is the national language, for heavens sake Hindi is not our national language.