Design For Shear And Torsion Using Etabs

Hello, I have recently joined a structural engineer, and trying to get myself familiar with the norms of practice, so I have some basic questions which I haven't been able to get answers of sufficiently. After modelling the structure in ETABS I'm trying to find out how to interpret the values of shear and torsion reinforcement given in design outputs. I have tried to find the answers by codes, manuals but haven't succeeded. Even asking my colleagues haven't given a satisfying answer, as

I am confused regarding this approach of reducing torsional modifier to such great extent. According to ACI 11.5.2.2 In a statically indeterminate structure where reduction of the torsional moment in a member can occur due to redistribution of internal forces upon cracking, the maximum Tu shall be permitted to be reduced to the values given in (a), (b), or (c), as applicable: (a) For nonprestressed members, at the sections described in 11.5.2.4 φ4λ Sqrt(fc ′) A2cp / Pcp