Making it daily will be a good addition, but re-routing is not necessary. This is the only dedicated service from MTM/BZA/GNT to Anantapur and SSPN, while all the other trains from BZA to this region come further up from Puri/BBS and do not have a good quota for BZA region.
Even if it takes 1 hr more than Seshadri, it is also serving as a good connectivity for interior Rayalaseema regions to BZA and new capital region. Besides, as this is a shorter route by distance ( From BZA, 697 km for Kondaveedu and 720 km for 17210), once the electrification for this route and the GY-YNK doubling is finished, speed-up can be expected.