Why regional catalogues are their own analysis
Most catalogue work on Indian streaming is built around Hindi and treats everything else as a long tail. On this service that framing fails immediately, because there is no Hindi centre - the catalogue is South Indian by design.
That makes it one of the better sources for a question that is otherwise hard to answer: what the South Indian language industries actually produce and how their catalogues compare. Release volume by language, genre mix, and how much of each industry's output reaches streaming are all answerable here and poorly served by the general services.
The second reason is dubbing, which is a commercial strategy rather than an afterthought. Which films get dubbed into which languages, and how quickly, tells you where a distributor thinks the audience is. That requires original language and available audio tracks as separate fields; with one language column it is unanswerable.
The third is the broadcast archive. A network service carries serials running to hundreds of episodes, and those will dominate any naive count of the catalogue. Typed separately they are interesting in their own right; merged, they drown the film library.
The fourth is scope. This is one network's service, strong in its languages and not a survey of Indian streaming, and we describe it that way.