The issues are far away from simpleton assumption on uni-coded nationalism over linguistic territory. It has to be dealt with various scales of micro to macro or within various shades of grey. The linguistic territorial behavior exists in most advance countries ex. Canada has French speaking territories which is attached to job opportunities, while Austrian shades of German language has displayed similar behavior and so is the German- Dutch frontiers. The linguistic polarities have connotation of economic opportunity in symbiotic way, which can not be erased with will of power politics.
It may be incorrect to contempt such demand & behavior when one sees groupism exist within city in name of geographical privileges. If south Mumbai is the case to promote what Mumbai international image is about than why not geographical language precedes the image on identity of region.
However at state level politics, it is also imperative to look at the strategy of ruling party with their pseudo secular gown to reinforce the elite hegemony. How is it possible that no individual rose to larger stature without dynasty affiliation? Since it has been the secular metaphor that needs to be represented rather than understood in international politics which has undermined the regionalism. Its may be slightly exaggeration to state that secular model is not enough to understand the aspiration of regional values. The vary idea of language preference is not outside the context of nationalism rather it‘s immediately a part of pseudo-secular policy that is being slapped on people.