It looks like RAM Concept uses an approximate method per Table 22.5.8.2 for calculating Vc and does not use the alternative option Vc per 22.5.8.3. There are cases where the shear capacity per 22.5.8.3 is less than the approximate method Per Table 22.5.7.2 especially for the transfer girder. It would be nice if Ram concept gives you both options, and the engineers decide which methods to use.
You are correct the detailed shear capacity equations in ACI 318-14 22.5.8.3 are not currently implemented in RAM Concept. Adding these calculations is currently in the product backlog and we will consider adding it in a future release.