Most of those are weekly trains and run in non-peak times in at least one direction. 12591/92, 15015/16 and 17203/04 run once a week each.They won't have impact on congestion in SC. Also there are only 4 weekly trains to GKP, three of them being passing trains from YPR. Given the crowd in these, there is no point in making them bypass SC.
Most of the morning arrivals at SC are from Kazipet size. There are very few trains coming from LPI side, and even among those, most of them are passengers or MMTS trains. 11019 causes no issues for SC in the morning.
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is well set in a slot between Cocanada and Gouthami.Again, no congestion issues.
Bypassing SC through SNF-MLY line can be considered in the future, but right now, there are very few passing trains at SC compared to terminating trains. Diverting these few passing trains won't make any difference, and is not even necessary.
Major congestion at SC is due to terminating trains occupying platforms for a long duration and blocking the lines during shunting. What is required is a new terminus for originating trains or reorganizing the existing trains to use different terminals to reduce congestion.