The point is that every big city small state/big state wants connectivity to Bangalore. Now probably SWR has realised that without improving infra in SBC, YPR etc, they are bit skeptical in clearing new trains.
Seems there is another thread going on where have heard hat they are prioritising intra state trains.
In introducing new trains of course SWR will be approving/disapproving trains. But the current infra is almost choked