There are restrictions in SBHR SKLR Shiradi Ghats. Already MAS MAQ doesn't have much demand/filling apart having three (or four) dedicated trains. If needed one of existing MAS MAQ can be extended till MAO by clubbing with a passenger and increasing deserved coaches.
When MAQ is not getting a fare share of trains to their own trains, it doesn't make sense to snatch away its trains to give another train the path. In short, its complicated.