Why not Kannada?
you are welcoming their move of launching regional sports channel, but you are unhappy with the language selection.
you may want star sports in telugu,malayalam bengali etc, but being a kannadiga I want star sports kannada.
They might have done some market analysis before taking the decision and might have found that it is feasible to launch a sports channel in kannada.
If they feel it is feasible to launch sports channels in other languages they will launch.
Anyway may your wish come true and let them launch sports channel in telugu, malayalam, bengali, marati etc.