While the suggestion is good, SWR does not seem inclined siting congestion, constraints etc in Mysuru. Also the time suggested by you KCVL-sbc is the same time currently followed by KCVL-SBC express so difficult to have such close time for 2 trains.
But definitely over a long period this should be implemented. Already lot of people have requested for change of time in Banaswadi to be made much earlier but looking at the platform constraints and congestion seems highly unlikely